Hung Nguyen Quoc, Hai Vo Hong, Nomachi Masaharu
Department of Nuclear Physics, Faculty of Physics and Engineering Physics, VNUHCM-University of Science, 227, Nguyen Van Cu Street, District 5, Ho Chi Minh City, Viet Nam.
Department of Nuclear Physics, Faculty of Physics and Engineering Physics, VNUHCM-University of Science, 227, Nguyen Van Cu Street, District 5, Ho Chi Minh City, Viet Nam; Nuclear Technique Laboratory, VNUHCM-University of Science, 227, Nguyen Van Cu Street, District 5, Ho Chi Minh City, Viet Nam.
Appl Radiat Isot. 2017 Mar;121:87-90. doi: 10.1016/j.apradiso.2016.12.047. Epub 2016 Dec 28.
In this article, a GEANT4 Monte Carlo simulation toolkit was used to study the response of the cosmic-ray induced background on a High-Purity Germanium (HPGe) gamma spectrometer in the wide energy range, up to 100MeV. The natural radiation background measurements of the spectrometer were carried out in the energy region from 0.04 to 50MeV. The simulated cosmic-ray induced background of the Ge detector was evaluated in comparison with the measured data. The contribution of various cosmic-ray components including muons, neutrons, protons, electrons, positrons and photons was investigated. We also analyzed secondary particle showers induced by the muonic component.
在本文中，使用GEANT4蒙特卡罗模拟工具包研究了在高达100MeV的宽能量范围内，宇宙射线诱发的本底对高纯锗（HPGe）伽马能谱仪的响应。该能谱仪的天然辐射本底测量是在0.04至50MeV的能量区域内进行的。通过与测量数据比较，评估了锗探测器模拟的宇宙射线诱发本底。研究了包括μ子、中子、质子、电子、正电子和光子在内的各种宇宙射线成分的贡献。我们还分析了μ子成分诱发的次级粒子簇射。
