摘要
建立了应用切伦科夫计数技术,不经化学分离直接测量放射性废水中 ̄(90)Sr- ̄(90)Y的方法。废水中存在的大多数干扰核素通过NPGeγ谱测量进行校正。对10种放射性废水中的 ̄(90)Sr- ̄(90)Y进行了测量,并与放化分析结果比较,结果表明对于大多数废水样品,这个方法是成功的。
A direct method is developed to assay ̄(90)Sr- ̄(90)Y in liquid radiowaste samples by Cerenkovcounting without any chemical separation. Since the most interfering nuclides existing in liquid ra-diowaste have pcor counting efficiencies,their Cerenkov contribution can be corrected by HPGeγ-spectrometry. The  ̄(90)Sr- ̄(90)Y contens are determined for 10 kinds of liquid radiowaste samplesand radiochemically analyzed for comparison. The results show that this method is competent formost liquid radiowaste samples.
出处
《核化学与放射化学》
CAS
CSCD
北大核心
1995年第4期248-251,共4页
Journal of Nuclear and Radiochemistry