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Separation of gallium and actinides in plutonium nuclear materials by extraction chromatography

机译:萃取色谱分离p核材料中的镓和act系元素

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摘要

Analysis of stable gallium in nuclear materials has applications in nuclear fuel characterization and nuclear forensics. The use of positron-emitting gallium isotope Ga-68 as a tracer for Ga recoveries for analyses in materials containing actinides was explored. A radiochemical method for the separation of Ga, Pu, U, Th, and Am using commercially-available extraction chromatography resins was developed and evaluated. The method effectively allows precise determination of Ga yield (97 +/- A 3 %) in the analysis of stable Ga (spike recovery 101 +/- A 1 %) and radioactive Pu (radiochemical yield, 82 +/- A 10 %; spike recovery, 96 +/- A 3 %), while also providing pure elemental fractions of other actinides relevant to materials encountered in the analysis Pu-containing materials.
机译:核材料中稳定镓的分析已应用于核燃料表征和核法证学。探索了使用发射正电子的镓同位素Ga-68作为Ga回收的示踪剂,用于分析含act系元素的材料。开发并评估了使用市售的萃取色谱树脂分离Ga,Pu,U,Th和Am的放射化学方法。该方法可有效地分析稳定的Ga(峰值回收101 +/- A 1%)和放射性Pu(放射化学的产率82 +/- A 10%),从而精确测定Ga的产率(97 +/- A 3%)。加标回收率(96 +/- A 3%),同时还提供与分析含Pu的材料有关的其他act系元素的纯元素馏分。

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