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fu射存在于整个宇宙縵han洌?薮Σ辉凇?hi物、房屋、tian空大地、山水草木乃至人们的体内，都存在zhoufu射zhao射。fu射无色无味，无声无臭，kan不见，mo不zhou。 </p> <p>fu射fen为tian然fu射和人工fu射。tian然fu射包括宇宙射xian和tian然fang射性核素。人类有shi以来一zhi受zhoutian然电离fu射yuan的zhao射，是人类接受fu射zhao射的主yao来yuan。而人工fu射是指与核xiang关的人为huo动引qi的对公众的zhao射，主yao蕅ie搅苲hao射，比例gao达98%。</p> </div> <div class="text2"> <p> rujin，核fu射yiguang穐e糜诠ひ怠⑴┮怠⒁搅频雀鱢ang面，成为人们生huojin步的助推力。例ru：物謘hi牧系膄uzhao保鲜、fu射育种、fuzhao杀chong（杀菌）、X光、CT检查、fang疗、考古和刑事侦查等等。 </p> </div> </div> <div class="faq-content"> <dl> <dt><span class="icon qa">+</span>电离fu射的屏蔽</dt> <dd><p><span style="color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">电离fu射虽然会对人体造成危hai，但也蕅iang梢云帘蔚摹Ⅻ/span><br style="box-sizing: border-box; color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial;"> <span style="color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">α射xian，穿透力最小，一张纸可挡住。</span><br style="box-sizing: border-box; color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial;"> <span style="color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">β射xian，可由金属ban屏蔽。</span><br style="box-sizing: border-box; color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial;"> <span style="color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">γ射xian，穿透力qiang，但通过设置较厚的混凝tuqiang，能完全jin行阻挡屏蔽。</span><br> </p></dd> </dl> <dl> <dt><span class="icon qa">+</span>fu射存在于各个环境中?</dt> <dd><p><span style="color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">fu射yuan糵u跷薮Σ辉冢瑀u电视、冰箱、wei波炉等家用电器，办公室里的电脑、复印机、空调，街上的gao压xian、电视信号发射塔，都会有wei量的fu射。</span><br> </p></dd> </dl> <dl> <dt><span class="icon qa">+</span>电磁fu射和电离fu射有何区别？</dt> <dd>电磁fu射，是指以电磁波衱en酵ü?zhan浯?サ膄u射，包括guang播电视、无xian通xun、雷达发射、gao压送bian电襶ue肮ひ怠⒖蒲小⒁搅葡低持械牡绱拍苡τ孟钅康人???膄u射。电离fu射又硃in派湫浴Ｊ侵赣胛镏蕑hi接huo者间接作用时能使物质电离的fu射，包括核设施、核糺i跤τ谩?樯鷉ang射性矿产资yuan等所产生的fu射。</dd> </dl> <dl> <dt><span class="icon qa">+</span>手机一格电，fu射大千倍？</dt> <dd> jing常在网上kan到huo听人说，手机只剩一格电的时候，fu射是ping时的1000倍。qi实是混xiao了“一格电”和“一格信号”了。一格信号的时候，fu射功率可能蕅ie藕抛詈檬钡?000倍甚至以上，但还是很小，在国家规ding的范weizhi内。</dd> </dl> <dl> <dt><span class="icon qa">+</span>被wei波炉加re过的shi物会致癌不？</dt> <dd> <span style="color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">wei波炉和手机一样，它们使用的电磁波属于非电离性fu射，并没有电离性fu射那种rangxibao癌bian的本领，只有re效应而yi。</span></dd> </dl> <dl> <dt><span class="icon qa">+</span>电吹风是gaofu射的杀手吗？</dt> <dd> <span style="color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">网传连续三磜en褂玫绱捣绲膄u射lei积量等于zhao一次X光的fu射量，而qie电吹风长时间近距离作用于tou部，杀伤力很大。事实上，电吹风的工作功率较大，的确可以fu射出较qiang的电磁场，但qi属于低频率的电磁场，fu射qiang度很低。说电吹风是gaofu射杀手的说法不靠谱。</span></dd> </dl> <dl> <dt><span class="icon qa">+</span>核电zhanfu近的居民剂量fu射有多大？</dt> <dd> <span style="color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">核电厂周wei居民因核电zhanyun行所接受的年pingjun剂量不足0.01hao希弗/人，远小于公众所接受的tian然本底fu射年剂量（2.4hao希弗/人）的水ping。</span></dd> </dl> <dl> <dt><span class="icon qa">+</span>在核电zhan工作的fu射剂量有多大？</dt> <dd> <span style="color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">fu射存在于整个宇宙縵han洌?死嘤衧hi以来一zhi受zhoutian然电离fu射yuan的zhao射，包括宇宙射xian、地球fang射性核素产生的fu射。人类所收到的ji体fu射剂量主yao来讂a趖ian然本底fu射（yue76.58%）和医疗（yue20%），核电zhan产生的fu射剂量非常小，yue为tian然fu射本底的0.25%。</span><br style="box-sizing: border-box; color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial;"> <span style="color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">核电zhan工作人yuan中并不是所有yuan工都会接触到fu射，正常qing况下只有生产xianyuan工可能因为工作关系会受到极少量fu射。秡a趛uan工fu射，国家有规ding限值，企业则有更褁i竦哪诓靠刂啤Ｄ縬ian我国核电厂未发生yuan工受到超过国家规ding限值fu射的qing况。各核电厂会根据fu射剂量水pingjin行fen区管理，秡a诮xi咚畃ing剂量区域会设置褁i竦膄u射防护监控措施，保zhang人yuan安全。企业秠un?衴uan工junjin行fu射剂量监测。</span><br style="box-sizing: border-box; color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial;"> <span style="color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">核电yun行jing验表ming，正常yun行工况下，在核电厂工作的人yuan受到的fu射zhao射剂量与pu通人群没有显zhu的差别。绝大多数核电厂的工作人yuan在一年中因工作所受到的zhao射剂量甚至低于乘坐一次fei机所受到的zhao射剂量。</span><br style="box-sizing: border-box; color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial;"> <span style="color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">核电厂周wei居民因核电zhanyun行所接受的年pingjun剂量不足0.01hao希弗/人，远小于公众所接受的tian然本底fu射年剂量（2.4hao希弗/人）的水ping。</span></dd> </dl> <dl> <dt><span class="icon qa">+</span>坐fei机会受到fu射zhao射吗？yun妇能坐fei机吗？</dt> <dd> <span style="color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">我们坐fei机的时候，到底会接受到哪些fu射，又接受到了多少fu射量ne？接下来就rang我们模ni一下fei行的过程。</span><br style="box-sizing: border-box; color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial;"> <span style="color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">qi实在去机场的耭ei希?蛓ijing在接受zhoutian然的fu射——tian然本底fu射，这种fu射ji本是躲不开的，因为它包括shi物、xiru（氡），宇宙射xian、地表γ。这些fu射加qi来ying响你一年，是2400wei西弗，而人类的一年安全fu射剂量是5000wei西弗。好吧，还没fei上tian，我胵ie裫ing默默接受了接近一半量的安全剂量。</span><br style="box-sizing: border-box; color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial;"> <span style="color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">到了机场，先别jizhou上fei机，得先过安检，行李的安全检查用的是X射xian。好在它的剂量比较小，只yao你不把手伸ru橡皮防护条内，那你接受到fu射最多不会超过5wei西弗，kan来这量并不大，可以忽lue。ruguo登机的地dian是美国，那你可能还yao可能额外xiang受到15wei西弗一次的人体Xxian扫描检查。</span><br style="box-sizing: border-box; color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial;"> <span style="color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">终于可以qifei了，现在唱主jiao的fu射yuan就是宇宙射xian了，这蕅ie恢执佑钪婵zhan鋔inru地球的gao能lizi流。联合国yuanzifu射效应科学委yuan会计算过一次10小时fei行受到的电离fu射量yue30wei西弗。包括我国在内的多个国家簍ou?浞阑せ?苟冀ㄒ椋琾u通公众因商业航ban而增加的fu射bao耫uan拗滴?磕瓴怀??000西弗。这需yaofei行300多小时，an波音737的800公里/小时的xun航速度计算yaorao赤道fei7圈！</span><br style="box-sizing: border-box; color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial;"> <span style="color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">说到这里，大家应gaixin里有数了吧，只yao你一年fei行距离不超过赤道的的7圈，你接受的fu射量秊iqian踩?摹Ⅻ/span><br style="box-sizing: border-box; color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial;"> <span style="color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">而秡a趛un妇来说，坐几次fei机也是没有shi么wenti的，空姐怀yun了也不过还是再说一下另一个wenti，yun妇处于生理的gao凝状态，发生血栓的风xian更大，而坐fei机（youqi是长途fei行）也是发生下肢血栓的危xian因素，因此坐fei机时一ding多huo动huo动。可以工作ne，一般乘客本身fei的也不频繁，这个fu射量真没比本底fu射（每年大yue2.4mSv）gao多少。</span></dd> </dl> <dl> <dt><span class="icon qa">+</span>yun妇bi须穿防fu射fu来保护baby么？</dt> <dd> <span style="color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">目qian没有证据表ming日常非电离fu射会导謑ue懈玖鞑?省⑻ザ?鹸ing率蓌ian牵?膊换岬贾滦律??錾?逯毓?汀?un妇无需特别防护。</span></dd> </dl> <dl> <dt><span class="icon qa">+</span>在电脑pang摆一盆xian人zhangxi收fu射有没有用？</dt> <dd> <span style="color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">ruguo植物的fen泌物能xi收fu射的话，防fu射men就不会采用厚重的水ni和重金属铅制作了，用含有植物fen泌物的物质zhi接填充效guo岂不是更好？所以，把植物穚ang诘缒耘yuan叻烙鵩u射是没有科学依据的。</span></dd> </dl> <dl> <dt><span class="icon qa">+</span>有人说，使用电脑后，脸上会xifu不少电磁fu射的keli，因此yao及时用qing水洗脸，这样将使面部所受到的fu射减轻70%以上，这是真的吗？</dt> <dd> <span style="color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">电脑的电磁fu射主yao来yuan于电脑里的各种电lu，并不会产生类藀in派湫晕镏市?eili的dong西。所以，当你坐在电脑qian，da开电脑，身体就会受到电磁fu射，当电脑关闭后，电磁fu射也会立刻停止。脸上不会有“残余的weili”，也就没有biyao洗掉了。</span></dd> </dl> <dl> <dt><span class="icon qa">+</span>人类能够离开电离fu射吗？</dt> <dd> <span style="color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">实ji上，人类的生huo没有一刻离开过电离fu射，主yao来自三个fang面：1. 宇宙射xian；2.地面和建筑物中的fang射性； 3.人体内部的fang射性。wei量的fang射性不会危及健康。</span><br style="box-sizing: border-box; color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial;"> <span style="color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">人类的很多huo动都离不开电离fu射。例ru，人们摄ru的縵hang??hi物、水中的fu射zhao射剂量yue为0.25hao希/年。dai夜光表每年有0.02hao希；乘fei机旅行2000公里yue0.01hao希；每tianchou20支烟，每年有0.5~1hao希；一次X光检查0.1hao希等等。</span></dd> </dl> <dl> <dt><span class="icon qa">+</span>xi烟会有fu射吗？</dt> <dd> <span style="color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">ruguo是烟yin大的人，一tianchou一包烟，一年下来受到的剂量在0.5~1mSv/a。</span></dd> </dl> <dl> <dt><span class="icon qa">+</span>使用电脑、手机和WIFI对人有shi么ying响？</dt> <dd> <span style="color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">首先，wifi无xian上网使用的电磁波波段一般是2.4GHz到5GHz，和手机使用的射频电磁波波段比较接近（比手机使用的频率稍weigao一些），属于非电离性fu射，主yao是对人体组织的加re作用可能ying响健康，需yao比较大的qiang度才会造成伤hai。</span><br style="box-sizing: border-box; color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial;"> <span style="color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">qi次，无xian上网的fu射大小主yao取决于信号的功率，和无xianlu由器的dai宽没有bi然联系。</span><br style="box-sizing: border-box; color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial;"> <span style="color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">无论笔记本电脑还是手机，他们的fu射值通常都在hao瓦每pingfangmi这个水ping上，远低于国約hi堑缋胄詅u射委yuan会制ding的安全上限——10瓦每pingfangmi（这个上限值只蕅ie桓鲆苑纖an一的安全限制，并不是说超过这个值，就会生病，只是会有轻wei的健康风xian）。</span><br style="box-sizing: border-box; color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial;"> <span style="color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">和手机fu射一样，无xian上网的lu由器和笔记本电脑一端产生的fu射都在安全范wei襶ue冢?籦i惊慌。</span></dd> </dl> <dl> <dt><span class="icon qa">+</span>室内装修会dai来fang射性污染吗？</dt> <dd> <span style="color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">近年来，花岗石用于室内装饰在我国有ming显的上sheng趋shi，ying响tian然石材fang射衴un畃ing的因素主yao是石材矿床的岩性，大理石、ban石和hei色花岗石ji本属于6类石材，qi使用范wei不受ren何限制；红色酸性岩和jian性岩具有絰i叩膄ang射衴uan萮uo度。限謕in派湫yun畃ing絰i叩氖?挠糜诰邮夷谧笆危??行У亟档褪夷诨肪砯u射水ping，减少公众所接受的tian然fu射剂量。</span><br style="box-sizing: border-box; color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial;"> <span style="color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">在《tian然石材产pinfang射性防护控制标准?en校琣n石质建材中的fang射衴uan萮uo度fen为三类：A类：使用范wei不受限制；B类：不可用于居室、内饰面，可用于qi他建筑物内、外饰面；C类：可用于一qie建筑物的外饰面。我们在gou买石材装饰材料时一dingyao索查由国家糺i跫喽絡ufen析测试资格认证的“CMAfang射性fen析测试证书”及产pin的适用范wei。ruguo是铺在居室内的石材，最好选用A类，而qie每个pin种都应gai有xiang应的检验bao告。</span></dd> </dl> <dl> <dt><span class="icon qa">+</span>在gaoyuan地区生huo的人们会受到更多的宇宙射xian的fuzhao吗？</dt> <dd> <span style="color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">宇宙射xian的qiang度随hai拔gao度的增加cheng指数增加，所以，在tai空、gaoyuan旅行huo乘坐fei机时，宇宙射xian对人类的fu射是不可忽视的。</span></dd> </dl> <dl> <dt><span class="icon qa">+</span>生huo中觴in男ゝu射</dt> <dd> <span style="color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">fu射存在于整个宇宙zhi间，人类有shi以来一zhi受zhoutian然电离fu射yuan的zhao射，包括宇宙射xian、地球fang射性核素产生的fu射等。</span><br style="box-sizing: border-box; color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial;"> <span style="color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">人类所受到的ji体fu射剂量主yao来自tian然本底fu射（yue76.58%）和医疗（yue20%），核电zhan产生的fu射剂量非常小（yue0.257%）。联合国yuanzifu射ying响科学委yuan会发瞛iǜ娉疲?谒?腥衔?蛩氐贾碌膄u射中，医羛in?渌鵽han的比例gao达98%。</span></dd> </dl> <dl> <dt><span class="icon qa">+</span>fang射性</dt> <dd> <span style="color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">所wei的fang射性qi实蕅ie恢肿匀幌謝iang，是指具觴in茏苑⒌豧ang出射xian属性的物质，这些物质的yuanzi核处于不稳ding状态，在qi发生核转bian的过程中，自发地fang出由lizihuo光zi组成的射xian，并fu射出yuanzi核里的过剩能量，同时本身转bian成另一种物质huo成为yuan来物质的较低能态。qi所fang出的lizihuo光zi，会对周wei介质huo机体产生电离作用，造成fang射性污染huo危hai。有时fang射性也称为电离fu射。</span></dd> </dl> <dl> <dt><span class="icon qa">+</span>ru何防护γ射xian？</dt> <dd> </dd> </dl> <dl> <dt><span class="icon qa">+</span>ru何防护β射xian？</dt> <dd> </dd> </dl> <dl> <dt><span class="icon qa">+</span>ru何防护α射xian？</dt> <dd> </dd> </dl> <dl> <dt><span class="icon qa">+</span>shi么是核fu射？核fu射觴in男┲掷啵军/dt> <dd> <span style="color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">核fu射，huo通常称zhi为fang射性，存在于所有的物质zhi中，这蕅ie趙an年来存在的客guan事实，是正常现xiang。核fu射是yuanzi核从一种结构huo一种能量状态转bian为另一种结构huo另一种能量状态过程中所蕋ou懦隼吹膚eiguanlizi流。核fu射可以使物质引qi电离huo激发，箂hi莆?缋雈u射。电离fu射又fenzhi接致电离fu射和间接致电离fu射。zhi接致电离fu射包括质zi等dai电lizi。间接致电离fu射包括光zi、中zi等不dai电lizi。核fu射包括α、β质zi等dai电lizi及间接致电离fu射包括γ光zi、中zi等不dai电lizi。这些lizi在fang射性核素发生bian化时以射xian的衱en椒⑸涑隼础＞褪峭ǔＫ?档摩辽鋢ian、β射xianγ射xian及中zi。</span><br style="box-sizing: border-box; color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial;"> <span style="color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">ru何防护α射xian？</span><br style="box-sizing: border-box; color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial;"> <span style="color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">由于αlizi穿透能力最弱，一张bai纸就能把他挡住，因此，秡a讦辽鋢ian应注意内zhao射，qijinru体内的主yao途径是huxi和jinshi，qi防护fang法主yao有?ai?）防止huru被污染的縵hang?蛃hiru被污染的shi误；（2）防止伤口被污染。</span><br style="box-sizing: border-box; color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial;"> <span style="color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">ru何防护β射xian？</span><br style="box-sizing: border-box; color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial;"> <span style="color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">β射xian穿透力比α射xianqiang，比γ射xian弱，所以β射xian用一般的金属就可以阻挡。但是，β射xian容易被表层组织xi收，引qi表层组织的fu射损伤。因此qi防护就复za得多?ai?）避免zhi接接触污染的物pin，以防皮肤表面的污染簍ou?湮?ai；（2）防止伤口被污染；（3）防止xiru被污染的縵hang?蛃hiru被污染的shi物；（4）biyao时应采取屏蔽措施。</span><br style="box-sizing: border-box; color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial;"> <span style="color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">ru何防护γ射xian？</span><br style="box-sizing: border-box; color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial;"> <span style="color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">γ射xian穿透力qiang，可以造成外zhao射，qi防护的fang法主yao有三种?ai?）尽可能减少受zhao射的时间；（2）增大与fu射yuan间的距离。因为受zhao射剂量率与离开fu射yuan距离的pingfang成反比；（3）采取屏蔽措施。在人与fu射yuanzhi间加一层足够厚的屏蔽物，可以降低外zhao射剂量。屏蔽的主yao材料有铅、gang筋混凝tu、水等，我们住的楼房对外zhao射来说是很好的屏蔽物体。</span></dd> </dl> <dl> <dt><span class="icon qa">+</span>核fu射的主yao来yuan觴in男?军/dt> <dd> <span style="color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">核fu射有tian然fu射yuan和人工fu射yuan两种。</span><br style="box-sizing: border-box; color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial;"> <span style="color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">1） tian然fu射yuan。讁uanyou死嘣诘厍蛏铣鱿忠岳矗?鸵粃hi受到tian然fu射yuan的zhao射。这种tian然存在的fu射yuan称为tian然fu射yuan，这种fu射称为tian然fu射。tian然fu射yuan主yao来讂a钪嫔鋢ian、宇生fang射性核素和yuan生fang射性核素。</span><br style="box-sizing: border-box; color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial;"> <span style="color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">（1）宇宙射xian来自tai阳和星ji縵han洌?鱵ao由中zi、质zi、电zi和各种介zi等gao速lizi组成。这些lizi具有很qiang的贯穿能力，可fu射到地球，但在穿越大气层时qi能量yi损shi殆尽，这时对人体造成外zhao射并不构成fu射健康危hai。宇宙射xian的qiang度随hai拔gao度的增加cheng指数增加，所以，在tai空、gaoyuan旅行huo乘坐fei机时，宇宙射xian对人类的fu射是不可忽视的。</span><br style="box-sizing: border-box; color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial;"> <span style="color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">宇宙fang射性核素是宇宙射xian与大气层中和地球表面的氧、氮等多种元素的yuanzi核xiang互作用所产生的fang射性核素。宇生fang射性核素yue有20多种，qi中3H、14C、7Be和22Na对人体的fu射剂量贡献较大，yi受到人们的关注。</span><br style="box-sizing: border-box; color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial;"> <span style="color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">（2）讂a械厍蛞岳淳痛嬖谟诘乜悄诘膄ang射性核素，称为yuan生fang射性核素。yuan生fang射性核素又可fen为两类，一类是有衰bian系列的核素，主yao是铀系（238Ufang射系）和钍系（232Thfang射系）两个系的一些核素；另一类是无衰bian系列的fang射性核素，ru40K、87Rb等。yuan生fang射性核素guang泛存在于地球的岩石、tu壤、jianghe、湖hai中。这些核素的huo度浓度簍ou植妓鎧hou岩石构造的类型不同而bian化。通常花岗岩中的huo度浓度最gao，tu壤和岩石中所含的铀、钍、镭、钾等元素，以40K的huo度浓度最gao。</span><br style="box-sizing: border-box; color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial;"> <span style="color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">2）人工fu射yuan就是用人工fang法产生的fu射yuan。</span><br style="box-sizing: border-box; color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial;"> <span style="color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">人工fu射yuan主yao有核设施、核糺i跤τ玫膄u射yuan簍ou派湫詂hen埃等。</span><br style="box-sizing: border-box; color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial;"> <span style="color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">（1）核设施謋u硕?ΤВê说鐉han、核re电厂、核供汽供re厂等）和qi他反应堆（研究堆、实验堆、临界装置等）；核燃義ian??⒓庸ぁ?hu存和后处理设施；fang射性废物的处理和处理设施等。ru核反应堆利用中zi与重核（称为核燃料，ru235U）xiang互作用发生liebian反应，在这过程中产生中zi、γ射xian及qi他一些fang射性核素，ru 铯-137、碘-131等。</span><br style="box-sizing: border-box; color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial;"> <span style="color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">（2）核糺i趵?弥兄鱵ao有密fengfang射yuan、非密fengfang射yuan，在医疗、工业、农业、地质调查、科学研究和教学等领域的使用。因这些fang射yuan的使用与人们的生huo和工作jin密xiang关，rufu誾han庸び妙?60、料位仪用铯-137、工业探伤用铱-192yuan等，需yao密qie关注并做好防护工作。</span><br style="box-sizing: border-box; color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial;"> <span style="color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">（3） fang射性chen埃早qi主yao是核武器试验时产生的fang射性chen埃随大气扩散造成的，另外还有核电zhan事故蕋ou诺囊恍ゝang射性核素。随zhou时间的推yi，核试验产生的fang射性chen埃中的短半衰qi的fang射性核素早yi难裝ai偌＃?籰iu下极少量的较长半衰qi的fang射性核素，ru铯-137，在周wei的tu壤中jin可襷a靡瞧鱢en析出，ying响yi忽lue不计。</span></dd> </dl> <dl> <dt><span class="icon qa">+</span>去医院拍片觴ing?ian吗？</dt> <dd> <span style="color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">人们生huo的环境中存在zhou各种各样的fu射。专家介shao，fu射包括tian然fu射和人为fu射，人体接受的fu射80%来自tian然fu射，20%yuan于人为的fu射，而在人为fu射中，医羛in?浼fu鮶han据了98%。</span><br style="box-sizing: border-box; color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial;"> <span style="color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">当病人到医院kan病，jin行zhenduan显ying时，ru接受X射xian、CT、PET、核磁共振、同位素治疗等仪器的zhenduan而受到一ding的zhao射。这些fu射本身具有一ding危hai性，但ruguo不是频繁使用的话就没有关系。</span><br style="box-sizing: border-box; color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial;"> <span style="color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">例ru肺部透视一次fu射剂量为0.02hao希，拍一次胸片的zhao射剂量为0.12hao希，作一次CT检查的zhao射剂量为10hao希。</span></dd> </dl> <dl> <dt><span class="icon qa">+</span>fang射防护中使用的单位簍u渴莝hi么？</dt> <dd> <span style="color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">1） fang射性huo度</span><br style="box-sizing: border-box; color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial;"> <span style="color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">　fang射性huo度（radioactivity）jian称huo度，它的SI单位是“S-1”，SI单位专名是贝可[勒er]（Becquerel），符号为Bq。1Bq＝1次衰bian/秒。</span><br style="box-sizing: border-box; color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial;"> <span style="color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">暂时与SI并用的专用单位名称是居里，符号为Ci。1Ci＝3.7×1010Bqhuo1Bq＝1s-1≈2.703×10-11Ci</span><br style="box-sizing: border-box; color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial;"> <span style="color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">可用克镭当量来表示γfang射yuan的xiang对fang射性huo度。1克镭当量表示一个γfang射yuan的γ射xian对縵hang?牡缋胱饔煤?克的标准镭yuan（穚ang诒诤裎?.5haomi的铂铱合金管内，qie与qizi体达到ping衡的1克镭）xiang当。</span><br style="box-sizing: border-box; color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial;"> <span style="color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">单位质量huo单位体积的fang射性物质的fang射性huo度称为fang射衴uan榷龋琱uo比fang射性（specific radioactivity）。</span><br style="box-sizing: border-box; color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial;"> <span style="color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">2） zhao射量</span><br style="box-sizing: border-box; color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial;"> <span style="color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">zhao射量（exposure dose）X是dQ除以dm所得的商，qi中dQ的值是在质量为dm縵hang?校?晒鈠i蕋ou诺娜?康鐉i（fu电zi和正电zi）在縵hang?型耆?蛔柚故彼???睦雤izong电荷的绝对量，即：X＝dQ/dm。单位：库仑·千克-1（C/kg）。</span><br style="box-sizing: border-box; color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial;"> <span style="color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">暂时与SI并用的zhao射量的专用单位名称是lun琴（Roentgen），符号为R，目qianshang无SI单位专名，与SI单位的关系为1R＝2.58×10-4C·kg-1。</span><br style="box-sizing: border-box; color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial;"> <span style="color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">lun琴的ding义是：在1R Xhuoγ射xianzhao射下，在0.001293g（xiang当于0℃和760mmgong柱大气压力下1cm3干燥縵hang?闹柿浚┛zhang?兴???拇渭兜鐉i在縵hang鴛ing成zong电荷量为1静电单位的正离zihuofu离zi。zhao射量只对縵hang??裕琷in适用于Xhuoγ射xian。</span><br style="box-sizing: border-box; color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial;"> <span style="color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">3） xi蕑han亮军/span><br style="box-sizing: border-box; color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial;"> <span style="color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">xi蕑han亮浚╝bsorbed dose）ding义为dε除以dm所得的商，qi中dε是致电离fu射给予质量为dm的受zhao物质的pingjun能量。即D＝dε/dm。</span><br style="box-sizing: border-box; color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial;"> <span style="color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">xi蕑han亮康腟I单位蕅iang苟?でЭ?1（J·kg-1），SI单位专名是戈[rui]（gray），符号Gy。</span><br style="box-sizing: border-box; color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial;"> <span style="color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">暂时与SI并用的专用单位名称是拉德，符号为rad。1Gy＝1J·kg-1＝100rad，huo1rad＝10-2　J·kg-1＝10-2Gy。</span><br style="box-sizing: border-box; color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial;"> <span style="color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">zhao射量X与xi蕑han亮緿是两个意义完全不同的fu射量。zhao射量只能作为Xhuoγ射xianfu射场的量度，描shu电离fu射在縵hang?械牡缋氡玖欤欢鴛i蕑han亮吭蚩梢za糜趓en何类型的电离fu射，反映被zhao介质xi收fu射能量的程度。但是，在两个不同量zhi间，在一ding条件下xiang互可以换算。秡a谕?掷唷⑼?芰康纳鋢ian和同一謟hi粃hao物质来说，xi蕑han亮渴怯雤hao射量成正比的。由于Xhuoγ射xian在縵hang?胁??欢岳雤i的pingjun能量yue为32.5eV，所以1R的Xhuoγ射xian在縵hang?械膞i蕑han亮縴ue为0.838rad；而在ruan组织中的xi蕑han亮縴ue为0.931rad。</span><br style="box-sizing: border-box; color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial;"> <span style="color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">4）当量剂量</span><br style="box-sizing: border-box; color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial;"> <span style="color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">xiang同的xi蕑han亮课碽i产生同样程度的生物效应，因为生物效应受到fu射类型、剂量与剂量率大小、zhao射条件、生物种类和个体生理差yi等因素的ying响。为了比较不同类衪ou?湟齫i的有hai效应，在fu射防护中引jin了一些系数，当xi蕑han亮砍松xian庑┬拚?凳?螅?涂梢za猛?籧hi度来比较不同类衪ou?鋤hao射所造成的生物效应的严重程度huo产生机率。</span></dd> </dl> <dl> <dt><span class="icon qa">+</span>tian然环境的fu射本底值yue多少?</dt> <dd><span style="color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">希沃特（Sv）、hao希沃特（mSv）、wei希沃特（?Sv）、戈rui（Gy）、hao戈rui（mGy）、wei戈rui（?Gy），新wen中这一大堆单位gu计yijingrang大家晕tou转xiang了，那么我们ping常环境中的fu射本底，qi实又有一个更小的常用单位——nGy。</span><br style="box-sizing: border-box; color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial;"> <span style="color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">换算ru下，</span><br style="box-sizing: border-box; color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial;"> <span style="color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">1000nGy/h=1μGy/h</span><br style="box-sizing: border-box; color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial;"> <span style="color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">1000μGy/h=1mGy/h</span><br style="box-sizing: border-box; color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial;"> <span style="color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">1000mGy/h=1Gy/h</span><br style="box-sizing: border-box; color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial;"> <span style="color: rgb(102, 102, 102); font-family: stheiti, "microsoft yahei", weiruan雅hei, 宋体, arial; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">而Gy和Sv的关系又ru何ne？jian单来说，ruguo不考虑人体秠ue亮康膞i收需yao考虑的quan重因zi（这个讲qi来又复za了，ruguo是fu射yuan是中zi、αlizi的话，quan重因zi最大会达到20，ruguo被zhao射的人体组织和器guan不一样，还yao考虑不一样的组织quan重因zi，不在我们这次的讨论范wei内），Gy（比释动能）到Sv（当量剂量）可襶ue蚧?悸浅伞??Gy=1Sv。</span> </dd> </dl> <dl> <dt><span class="icon qa">+</span>核fu射有shi么用途？</dt> <dd> rujin，核fu射yiguang穐e糜诠ひ怠⑴┮怠⒁搅频雀鱢ang面。例ru：物謘hi牧系膄uzhao保鲜、fu射育种、fuzhao杀chong（杀菌）、X光、CT检查、fang疗、考古和刑事侦查等。</dd> </dl> <dl> <dt><span class="icon qa">+</span>电磁fu射对健康有hai吗？</dt> <dd> </dd> </dl> </div> </div> </div></div>     <div class="xshidden"> <div class="footer"> <div class="foot-nav"> <div class="wrap"> <div class="flogo"><img width="223" height="52" src="http://www.cgnpc.com.cn/cgn/xhtml/src/1307328.jpg"></div> <div class="ftxtd"><span>善觤i匀坏哪芰军/span>深圳市福田区深南大道2002号中guang核大厦</div> <div class="sns"> <a class="sns-icon " target="_blank" href="/1901762782"><i class="fa fa-weibo"></i>guanfangweibo</a> <a class="sns-icon " target="_blank" href="/cgn/c101100/lm_tt_one.shtml"><i class="fa 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