<***N>(射线辐射防护知识)
<***N style="COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体; mso-bidi-font-size: 10.5pt">一、四种常见的射线:***N><***N lang=EN-US style="COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体; mso-bidi-font-size: 10.5pt">
<***N style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">在我们的周围到处存在着射线<***N lang=EN-US>—***N>太阳光、无线电波、微波、红外线、宇宙射线,这些射线都是电磁波。由于光子的能量较低,强度较小,它们大多是没有危害的。<***N lang=EN-US>
<***N style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">核射线就和它们有很大的不同。<***N lang=EN-US>
<***N lang=EN-US style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">1***N><***N style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">) 它们由<***N lang=EN-US>α***N>、<***N lang=EN-US>β***N>和中子组成同<***N lang=EN-US>γ***N>射线一样具有很短的波长。<***N lang=EN-US>
<***N lang=EN-US style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">2***N><***N style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">) 它们的能量高到足以使分子离子化导致生物组织遭到破坏。<***N lang=EN-US>
<***N style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">核射线有时也叫做<***N lang=EN-US>“***N>离子射线<***N lang=EN-US>”***N>。受到射线照射的生物体可能使机体遭到不同程度的破坏。这取决于射线源的强度和广度以及采取的防护措施。通常情况下穿透力较强的射线是<***N lang=EN-US>γ***N>射线和中子射线,它们破坏性较小,但是防护困难。<***N lang=EN-US>α***N>、<***N lang=EN-US>β***N>射线穿透力较弱,破坏性较大,但是防护比较简单。所有这些放射源都是向四周空间时刻放射射线。***N><***N lang=EN-US style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">
<***N style="COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体; mso-bidi-font-size: 10.5pt">二、<***N lang=EN-US>γ***N>射线和<***N lang=EN-US>X***N>射线***N><***N lang=EN-US style="COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体; mso-bidi-font-size: 10.5pt">
<***N style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">X和<***N lang=EN-US>γ***N>射线都是电磁波(光子)。**的区别是来源:<***N lang=EN-US>γ***N>射线是属于原子核发射出来的辐射;X射线指的是在原子核外部产生的辐射。<***N lang=EN-US>
<***N style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">它们和光速一样快,能穿透大多数物体,在介质中穿过波长不会发生变化但强度会逐渐减弱。<***N lang=EN-US>Gamma***N>射线在空气中传播几乎不受影响,它可以被几英尺的水,数英尺的混凝土,几英寸的钢或铅完全阻挡。由于它不容易被减弱,所以能轻易的检测到它的存在,同时人体也容易被它照射到。多数放射源在释放<***N lang=EN-US>Gamma***N>射线时都伴随着释放出<***N lang=EN-US>α***N>、<***N lang=EN-US>β***N>射线或中子射线。<***N lang=EN-US>X***N>射线能量比<***N lang=EN-US>γ***N>射线能量稍低。***N><***N lang=EN-US style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">
<***N style="COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体; mso-bidi-font-size: 10.5pt">三、辐射危害***N><***N lang=EN-US style="COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体; mso-bidi-font-size: 10.5pt">
<***N lang=EN-US style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">1***N><***N style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">、职业照射<***N lang=EN-US> 2***N>、公众照射<***N lang=EN-US>3***N>、医疗照射<***N lang=EN-US> 4***N>、潜在照射 <***N lang=EN-US>
<***N lang=EN-US style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">
<***N style="COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体; mso-bidi-font-size: 10.5pt">四、吸收剂量***N><***N lang=EN-US style="COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体; mso-bidi-font-size: 10.5pt">
<***N style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">对<***N lang=EN-US>X***N>射线 、<***N lang=EN-US>γ***N>射线,吸收剂量在<***N lang=EN-US>0.25***N>戈瑞以下时,人体一般不会有明显效应;但是,剂量再增加,就可能出现损伤。当达到几个戈瑞时,就可能使部分人死亡。接受同样数量的<***N lang=EN-US>“***N>吸收剂量<***N lang=EN-US>”***N>,受照射时间越短,损伤越大;反之,则轻。吸收同样数量剂量,分几次照射,比一次照射损伤要轻。<***N lang=EN-US>
<***N style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">表<***N lang=EN-US>1***N>、常用放射线单位及换算关系***N><***N lang=EN-US style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">
<***N style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">物理量***N><***N lang=EN-US style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"> |
<***N lang=EN-US style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">SI***N><***N style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">单位***N><***N lang=EN-US style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"> |
<***N style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">并用单位***N><***N lang=EN-US style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"> |
<***N style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">专用单位***N><***N lang=EN-US style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"> |
<***N style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">换算关系***N><***N lang=EN-US style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"> |
<***N style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">放射性活度<***N lang=EN-US> |
<***N lang=EN-US style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">S-1 |
<***N style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">居里<***N lang=EN-US>Ci |
<***N lang=EN-US style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">Bq***N><***N style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">(贝克)<***N lang=EN-US> |
<***N lang=EN-US style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">1Ci=3.7×10-10 Bq |
<***N style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">照射量<***N lang=EN-US> |
<***N lang=EN-US style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">C/kg |
<***N style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">伦琴<***N lang=EN-US>R |
<***N lang=EN-US style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">C/kg***N><***N style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">(库仑<***N lang=EN-US>/***N>千克)<***N lang=EN-US> |
<***N lang=EN-US style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">R=2.58×10 |
<***N style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">吸收剂量<***N lang=EN-US> |
<***N lang=EN-US style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">J/kg |
<***N style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">拉德<***N lang=EN-US>rad |
<***N lang=EN-US style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">Gy***N><***N style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">(戈瑞)<***N lang=EN-US> |
<***N lang=EN-US style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">1Gy=100rad |
<***N style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">剂量当量<***N lang=EN-US> |
<***N lang=EN-US style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">J/kg |
<***N style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">雷姆<***N lang=EN-US>rem |
<***N lang=EN-US style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">Sv(***N><***N style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">希沃特<***N lang=EN-US>) |
<***N lang=EN-US style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">1Sv =100 rem |
<***N lang=EN-US style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">
<***N style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">剂量(<***N lang=EN-US>Sv***N>)<***N lang=EN-US> |
<***N style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">剂量(<***N lang=EN-US>rem***N>)<***N lang=EN-US> |
<***N style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">整个身体瞬间接受计量<***N lang=EN-US> |
<***N lang=EN-US style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">>4.0 |
<***N lang=EN-US style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">>400 |
<***N style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">死亡<***N lang=EN-US> |
<***N lang=EN-US style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">4.0 |
<***N lang=EN-US style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">200-400 |
<***N style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">产生几种射线疾病:**和骨密度遭到破坏,红细胞和白细胞数量极度减少,有内出血、呕吐、腹泻症状<***N lang=EN-US> |
<***N lang=EN-US style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">1-2 |
<***N lang=EN-US style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">100-200 |
<***N style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">轻微的射线疾病,疲劳、呕吐、食欲减退、暂时性脱发。红细胞减少、不可恢复。<***N lang=EN-US> |
<***N lang=EN-US style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">0.1-0.5 |
<***N lang=EN-US style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">10-50 |
<***N style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">没有疾病感觉,但血样中白细胞数量在减少。<***N lang=EN-US> |
<***N lang=EN-US style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"><0.1 |
<***N lang=EN-US style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"><10 |
<***N style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">对人体没有任何危害<***N lang=EN-US> |
<***N style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">表<***N lang=EN-US>3***N>:各类暴露剂量***N><***N lang=EN-US style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">
<***N style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">剂量<***N lang=EN-US>(μSv***N>)<***N lang=EN-US> |
<***N style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">剂量<***N lang=EN-US>(μrem***N>)<***N lang=EN-US> |
<***N style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">射线源或限度<***N lang=EN-US> |
<***N lang=EN-US style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">3 |
<***N lang=EN-US style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">300 |
<***N style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">天然背景值<***N lang=EN-US> |
<***N lang=EN-US style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">30 |
<***N lang=EN-US style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">3000 |
<***N style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">乘<***N lang=EN-US>10***N>小时飞机<***N lang=EN-US> |
<***N lang=EN-US style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">100-200 |
<***N lang=EN-US style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">10000-20000 |
<***N lang=EN-US style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">X***N><***N style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">射线医学检查累积量<***N lang=EN-US> |
<***N lang=EN-US style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">700 |
<***N lang=EN-US style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">70000 |
<***N lang=EN-US style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">X***N><***N style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">射线医学检测和应用人员一年的累积量<***N lang=EN-US> |
<***N lang=EN-US style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">1000-2000 |
<***N lang=EN-US style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">0 |
<***N style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">来自自然放射源一年的剂量<***N lang=EN-US> |
<***N lang=EN-US style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"><1000-3000 |
<***N lang=EN-US style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"><0 |
<***N style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">室内空气中来自氡的一年累积量<***N lang=EN-US> |
<***N lang=EN-US style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">1000-5000 |
<***N lang=EN-US style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">0 |
<***N style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">平均每人一年的累积量<***N lang=EN-US> |
<***N lang=EN-US style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">50000 |
<***N lang=EN-US style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">5 ***N><***N style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">百万<***N lang=EN-US> |
<***N style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">与放射相关的工人一年的**量<***N lang=EN-US> |
<***N lang=EN-US style="FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">
<***N style="COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体; mso-bidi-font-size: 10.5pt">五、**基本安全标准的剂量限值主要有哪些<***N lang=EN-US>?。。。。。。***N>***N>
<***N style="COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体; mso-bidi-font-size: 10.5pt"><***N lang=EN-US>***N>***N>
<***N style="COLOR: #333333; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体; mso-bidi-font-size: 10.5pt"><***N lang=EN-US>(了解完整资料链接:http://www.hkgw.cn/shownews.asp?n_id=579)***N>***N>