用高纯锗γ-谱仪借助滑动比较方法精密测量放射性核的γ-射线能量  

Precise Measurement of Gamma Ray Energies With HPGE Spectrometer by Slithering Comparison Method

作　　者：张天保[1] 王淑英[1] 王海东[1] 沈智奇[1] 孟伯年 

机构地区：[1]中国科学院高能物理研究所应用部,北京100080 [2]EG&G Ortec公司中国代表处

出　　处：《高能物理与核物理》1993年第3期202-207,共6页High Energy Physics and Nuclear Physics

基　　金：中国科学院重大研究项目;国家自然科学基金

摘　　要：以^(192)Ir γ-射线能量准确值为标准对高纯锗γ-谱仪进行滑动扫描刻度,通过比较测定放射性核γ-射线能量,得到:477603.18±0.44eV(~7Be)、511852.70±0.58eV(^(106)Ru)、514004.87±0.52eV(^(85)Sr)、520399.01±0.63eV(^(83)Rb)、529594.48±0.69eV(^(83)Rb)和552551.14±0.68eV(^(83)Rb)。用这一结果校正以往的实验,得到电子质量值510998.6±1.1eV,它与电子质量的近期调节值良好符合。The energies of γ-rays from some nuclides around 500 keV have been measured by a slithering comparison with the precisely known γ-energies of ^(192)Ir. The energies determined by this method are:477603.18(44) eV for ~7Be, 511852.70(58) eV for ^(106)Ru, 514004.87(52) eV for ^(35)Sr,520399.01(63) eV for ^(83)Rb, 529594.48(69) eV for ^(83)Rb and 552551.14(68) eV for ^(83)Rb, From the correction of the previous experiment by using the new result, the value of electron mass is obtained as 510998.6±1.1 eV which is in good agreement with the recently adjusted value of electron mass.

关 键 词：Γ谱仪 Γ辐射 能量 测量 

分 类 号：O571.323[理学—粒子物理与原子核物理]