天顶角 0°-45°范围内宇宙射线成分对 HPGe 伽马分光计背景光谱的贡献

IF 1.6 3区 物理与天体物理 Q2 NUCLEAR SCIENCE & TECHNOLOGY
Vo Hong Hai , Nguyen Quoc Hung , Nguyen Tri Toan Phuc , Masaharu Nomachi
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引用次数: 0

摘要

这项研究调查了高纯锗(HPGe)伽马能谱仪在 0°-45°天顶角范围内的能量响应中各种宇宙射线诱导成分的贡献。分析的重点是μ介子、中子、质子、电子、正电子和光子。它还研究了μ介子与铅室相互作用并到达 HPGe 探测器所引发的粒子群的影响。利用 GEANT4 仿真工具包,我们详细研究了这些成分对光谱的影响。结果证实,在这一天顶角范围内,μ介子约占所记录的宇宙射线诱导能谱的91%,对整个宇宙射线诱导背景谱的贡献率为54.6%。该研究还强调了阵列,特别是μ介子与铅屏蔽相互作用产生的阵列,在形成 3 MeV 以下低能谱方面的重要作用。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Contributions of cosmic-ray components to the HPGe gamma spectrometer background spectrum within the 0°–45° Zenith angle range
This study investigates the contributions of various cosmic-ray-induced components to the energy response of a High-Purity Germanium (HPGe) gamma spectrometer within the 0°–45° zenith angle range. The analysis focuses on muons, neutrons, protons, electrons, positrons, and photons. It also examines the impact of particle showers induced by muons interacting with the lead chamber and reaching the HPGe detector. Utilizing the GEANT4 simulation toolkit, we provide a detailed examination of these components' influence on the spectrum. The results confirm that within this zenith angle range, muons account for approximately 91% of the recorded cosmic-ray induced energy spectrum and contribute 54.6% to the overall cosmic-ray-induced background spectrum. The study also highlights the significant role of showers, especially those resulting from muon interactions with the lead shielding, in shaping the low-energy spectrum below 3 MeV.
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来源期刊
Radiation Measurements
Radiation Measurements 工程技术-核科学技术
CiteScore
4.10
自引率
20.00%
发文量
116
审稿时长
48 days
期刊介绍: The journal seeks to publish papers that present advances in the following areas: spontaneous and stimulated luminescence (including scintillating materials, thermoluminescence, and optically stimulated luminescence); electron spin resonance of natural and synthetic materials; the physics, design and performance of radiation measurements (including computational modelling such as electronic transport simulations); the novel basic aspects of radiation measurement in medical physics. Studies of energy-transfer phenomena, track physics and microdosimetry are also of interest to the journal. Applications relevant to the journal, particularly where they present novel detection techniques, novel analytical approaches or novel materials, include: personal dosimetry (including dosimetric quantities, active/electronic and passive monitoring techniques for photon, neutron and charged-particle exposures); environmental dosimetry (including methodological advances and predictive models related to radon, but generally excluding local survey results of radon where the main aim is to establish the radiation risk to populations); cosmic and high-energy radiation measurements (including dosimetry, space radiation effects, and single event upsets); dosimetry-based archaeological and Quaternary dating; dosimetry-based approaches to thermochronometry; accident and retrospective dosimetry (including activation detectors), and dosimetry and measurements related to medical applications.
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