P. Bienvenu, L. Ferreux, G. Andreoletti, N. Arnal, M. Lépy, M. Bé
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引用次数: 15
摘要
摘要采用电感耦合等离子体质谱法(ICP-MS)和伽马谱法对核燃料后处理的纯化样品溶液测定了新的126Sn半衰期。126Sn通过裂变产物沉淀溶解和n -苯甲酰- n -苯基-羟胺(BPHA)液液萃取分离得到。在分析的溶液中，126Sn原子的丰度以及干扰物质的缺失使得测量质量浓度和核素活性具有很高的精度和准确性。这导致126Sn的半衰期值为1.980(57)×105 a。
Determination of 126Sn half-life from ICP-MS and gamma spectrometry measurements
Abstract A new value of 126Sn half-life was determined by combination of inductively coupled plasma-mass spectrometry (ICP-MS) and gamma spectrometry measurements on purified sample solutions collected from nuclear fuel reprocessing. 126Sn was isolated through dissolution of fission product precipitates and liquid-liquid extraction with N-benzoyl-N-phenyl-hydroxylamine (BPHA). The abundance of 126Sn atoms together with the absence of interfering species in the analysed solutions made it possible to measure both mass concentration and nuclide activity with high precision and accuracy. This led to a 126Sn half-life value of 1.980(57)×105 a.
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