论文部分内容阅读
本文介绍汉福特厂一名放化操作工,由于大量~(241)Am污染,总的体内沉积量超过1mCi,可以应用活体测量技术直接测定个别器官的含量,从而使得不必依靠尿排出模型就能对体负荷量进行估算。事故发生后,尽可能快地收集痰标本,经化学分离过程和α能谱分析,表明大于99%的活性是~(241)Am。事故后收集的最初100个尿、粪样品,用锂漂移锗探测器测定~(241)Am的活性;随后的尿、粪样品,用NaI(T1)井型计数器测定~(241)Am的活性。上述两种
This article describes a plant chemist at the Hanford plant who, due to a large amount of ~ (241) Am contamination and a total in vivo deposition of more than 1 mCi, can measure the content of individual organs using in vivo measurement techniques so that it does not have to rely on a urine excretion model The body load is estimated. After the accident, the sputum samples were collected as soon as possible. The chemical separation process and alpha spectroscopy showed that the activity of more than 99% was ~ (241) Am. The first 100 urinary and fecal samples collected after the accident were assayed for the activity of ~ (241) Am using a lithium-drift germanium detector; subsequent urinary and fecal samples were assayed for ~ (241) Am activity using a NaI (Tl) . The above two kinds