~(156)Eu衰变发射的γ射线绝对强度测量

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Measurements of the Absolute Intensities for the γ-rays From ~(156)Eu Decay

摘要: 经热中子辐照过的154 Sm样品, 用离子交换法进行化学分离, 得到放射性核素156 Eu。用 4πβ γ符合装置测量放射性活度, 以及用HPGe和小平面Ge探测器测量γ射线数。通过这些测量, 精确测定了156 Eu衰变发射的γ射线绝对强度。测量结果的不确定度小于 2 %。
- γ射线绝对强度 ,
- 4πβγ符合 ,
- HPGe探测器 ,
- 小平面Ge探测器
Abstract: Eu activity is obtained from the 154 Sm sample irradiated by reactor neutrons and through chemical separation by ion exchange technique. Activity is measured using 4πβ γ coincidence apparatus and photon counting is performed applying HPGe and small area planar Ge detectors. From these measurements the absolute intensities for the γ rays emitted from decay of 156 Eu are determined. The uncertainties of experimental results are less than 2%.
- absolute intensity of γ ray ,
- 4πβ γ coincidence ,
- HPGe detector ,
- small area planar Ge detector

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