加速器质谱测量用HfF_4的固相合成研究  

Solid phase synthesis of HfF_4 for AMS application

作　　者：姜涛[1] 杨通在[1] 杨君[1] 拓飞[2] 杨亮[1] 

机构地区：[1]中国工程物理研究院核物理与化学研究所,绵阳621900 [2]中国原子能科学研究院核物理研究所,北京102413

出　　处：《核技术》2010年第5期354-356,共3页Nuclear Techniques

基　　金：国家自然科学基金联合资助基金-NSAF联合基金(10576040)资助

摘　　要：HfO2样品通过分离纯化流程后,与NH4HF2进行固相反应制成HfF4,并用加速器质谱进行测量。结果表明:α-安息香肟萃取是降低182W含量的重要步骤;固相合成法制备的HfF4样品中180HfF5-的引出束流强度是同等条件下液相合成法的3-4倍;制样方法(固相合成法、液相合成法)对182W/Hf值影响不大;HfF4中182W/Hf值低至10-11g·g-1量级。The method of solid-phase synthesis of HfF4 for AMS measurement was researched in this paper.After separation and purification progress,the HfO2 sample was made to HfF4 which was measured by AMS with NH4HF2 by solid-phase reaction.The results show that the extraction of α-benzoin oxime was an important step for decreasing the 182W content.The beam flux of 180HfF5? in HfF4 made by solid-phase synthesis was three to four times higher than that made by liquid-phase synthesis at the same condition.The sample pr...

关 键 词：182Hf 加速器质谱 182W HfF4 固相合成 制备 

分 类 号：TL506[核科学技术—核技术及应用]