核化学与放射化学2009，Vol.31Issue(4)：193-197,5.
~(101)Tc半衰期的测量
Measurement of ~(101)Tc Half-Life
游新锋 1张生栋 1杨志红 1丁有钱 1崔安智1
作者信息
- 1. 中国原子能科学研究院,放射化学研究所,北京,102413
- 折叠
摘要
Abstract
75 mg (NH_4)_6Mo_7O_(24)·4H_2O solution was irradiated for 20 min in miniature neutron source reactor (MNSR) and cooled for 12 min. In the conditions of 0.8 mol/L HNO_3, phase ratio 1∶1, the solution of ~(101)Tc sample was extracted twice with α-benzoin oxime/ethyl acetate phase to remove ~(101)Mo and a radiochemically pure and carrier-free ~(101)Tc product was obtained. The half-life of ~(101)Tc was accurately measured with a HPGe γ-detector by following 306.8 keV γ-ray about 150 min, and processed the data by three methods, R-value method, iterative method and translation method. Five parallel measurments gave a half-life (14.02±0.01) min (n=5) for ~(101)Tc.关键词
~(101)Tc/半衰期测量/Mo/Tc分离/HPGeγ谱仪Key words
~(101)Tc/ measurement of half-life/ separate Tc from Mo/ HPGe γ-detector分类
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游新锋,张生栋,杨志红,丁有钱,崔安智..~(101)Tc半衰期的测量[J].核化学与放射化学,2009,31(4):193-197,5.
