Response of germanium detectors for high-energy γ-rays by 27Al(p, γ)28Si at Ep = 992keV
Response of germanium detectors for high-energy γ-rays by 27Al(p, γ)28Si at Ep = 992keV
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27Al(p, γ)28Si 锗探测器在 Ep = 992keV 时对高能 γ 射线的响应
DOI：
10.1093/ptep/ptad055
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发表时间：
2023
影响因子：
3.5
通讯作者：
Sakurai Hiroyoshi
中科院分区：
文献类型：
--
作者：
Mizuno Rurie;Niikura Megumi;Ikeda Tokihiro;Matsuzaki Teiichiro;Go Shintaro;Saito Takeshi Y;Michimasa Shin’ichiro;Sakurai Hiroyoshi
在27al (p, γ)28Si反应中，用992 kev共振评价了锗探测器对高能γ射线的探测性能。测量是在RIKEN的串联加速器上进行的。共振产生的激发态能量为12540.7(2)keV。利用新计算的激发能，推导出了高达10.8 mev光子的锗探测器的能量校准函数和光峰值效率。能量精度达到0.3 keV的整体能量区域。该反应为高能γ射线提供了可靠的能量和效率标准。
The performance of germanium detectors for high-energy γ-rays was evaluated using a 992-keV resonance in the27Al(p, γ)28Si reaction. The measurement was conducted at the RIKEN tandem accelerator. The energy of the excited state from the resonance was evaluated as 12540.7(2) keV. Using newly evaluated excitation energy, an energy calibration function and a photo peak efficiency of Ge detectors up to 10.8-MeV photons were deduced. Energy accuracy is achieved at 0.3 keV for the overall energy region. This reaction provides reliable energy and efficiency standards for high-energy γ-rays.