Plutonium-239

Fission track analysis method of urine plutonium and estimation of plutonium-239 internal dose to Marshallese

尿钚裂变径迹分析方法与马绍尔居民钚－239内照射剂量的估算

The amount of the residual plutonium-239 in the nuclear explosion debris was determined by mass-spectrometric and alpha-spectrometric analyses .

用质谱和α谱分析法测定了核爆炸烟云中的剩余钚-239量（~（239）PuR）。