通过使用硅（锂）探测器测量LγX射线来确定伤口中钚-239与镅-241的比例。
Determining the ratio of 239Pu to 241Am in wounds by measuring the L gamma x-rays with a Si(Li) detector.
作者信息
Palmer H E, Rhoads M C
机构信息
Pacific Northwest Laboratory, Richland, Washington 99352.
出版信息
Health Phys. 1989 Feb;56(2):249-52.
A Si(Li) planar detector provides sufficient photopeak resolution to resolve the 20.16-keV U L gamma x rays resulting from 239Pu decay and the 20.78-keV Np L gamma x rays resulting from 241Am decay. The energies and, therefore, the absorption coefficients of the two x rays are very similar; thus, the ratio of the peaks for a source embedded in tissue remains approximately the same for the two x rays up to at least 6 mm. Measurements of 239Pu-to-241Am ratios by this method in deep wounds agree with results obtained by radiochemical analysis of excised tissue.
硅（锂）平面探测器具有足够的光电峰分辨率，能够分辨出由239Pu衰变产生的20.16千电子伏特的铀Lγ射线以及由241Am衰变产生的20.78千电子伏特的镎Lγ射线。这两种X射线的能量以及吸收系数非常相似；因此，对于嵌入组织中的源，这两种X射线的峰比在至少6毫米的深度内大致保持相同。用这种方法对深部伤口中239Pu与241Am的比率进行测量，所得结果与对切除组织进行放射化学分析得到的结果一致。
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