加速器质谱法测量99Tc  

Measurement of 99Tc by Accelerator Mass Spectrometry

作　　者：彭博[1,2] 何明[1] 丁艳秋[1,2] 管永精[1] 武绍勇[1] 董克君[1] 李世红[1] 阮向东[2] 姜山[1] 

机构地区：[1]中国原子能科学研究院核物理研究所,北京102413 [2]广西大学,广西南宁530004

出　　处：《质谱学报》2005年第z1期69-70,共2页Journal of Chinese Mass Spectrometry Society

摘　　要：99Tc is a fission product, and it has high fission yield (6%) and very long half-life (2.1×105 a). With the movement of nucleus, the concentration of 99Tc is increasing in the circumstance. So it's important to measure the concentration of 99Tc in the circumstance, and accelerator mass spectrometry (AMS) might be the best method for 99Tc measurement. The 93Nb is used for AMS instrument normalization, sample matrix. And we used the difference of energy loss and deducting the isotope to measure the 99Tc in a series of standard samples. And the results show that the AMS is the feasible measurement method.

关 键 词：99Tc ACCELERATOR mass SPECTROMETRY deduct the ISOTOPE gas IONISATION DETECTOR 

分 类 号：O657.63[理学—分析化学]