在激光共振电离质谱(LRIMS)分析过程中,样品的原子化是非常重要的,它直接决定了生成原子的数量和质量,对激光共振电离质谱测量的探测灵敏度起到至关重要的作用。为了解决激光共振电离质谱中钚(Pu)的原子化效率低的问题,借鉴国外研究经验,开展了金属包覆钚源制备技术的研究。这种源是将Pu样品通过电沉积的方式与铼带结合,并在Pu样品之上覆盖一层金属,当温度加热到适当温度后,Pu的 During LRIMS analysis, atomization of the sample is very important. It directly determines the amount and quality of the generated atoms and plays a crucial role in the detection sensitivity of laser resonance ionization mass spectrometry. In order to solve the problem of low atomization efficiency of plutonium (Pu) in laser resonance ionization mass spectrometry, the research on preparation technology of metal-coated plutonium source was studied with reference to foreign research experience. This source is the Pu sample by electrodeposition with the rhenium band and the Pu sample is covered with a layer of metal, when the temperature is heated to an appropriate temperature, Pu