Design of energy spectrum device for radon measuring with electrostatic collection method

GUO Huiping; WEI Zhihao; LYU Ning; LYU Wenhui; BAO Weihong; ZHAO Yonggang

doi:10.11889/j.0253-3219.2014.hjs.37.060206

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Design of energy spectrum device for radon measuring with electrostatic collection method

更新时间：2021-03-03

- Design of energy spectrum device for radon measuring with electrostatic collection method
- NUCLEAR TECHNIQUES Vol. 37, Issue 6, Article number: 060206(2014)
- 作者机构：
  
  第二炮兵工程大学,西安,710025
- 作者简介：
- 基金信息：
- DOI：10.11889/j.0253-3219.2014.hjs.37.060206
  CLC：
- Published：04 June 2014
- 稿件说明：
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GUO Huiping, WEI Zhihao, LYU Ning, et al. Design of energy spectrum device for radon measuring with electrostatic collection method[J]. Nuclear techniques, 2014, 37(6): 060206
DOI：

GUO Huiping, WEI Zhihao, LYU Ning, et al. Design of energy spectrum device for radon measuring with electrostatic collection method[J]. Nuclear techniques, 2014, 37(6): 060206 DOI： 10.11889/j.0253-3219.2014.hjs.37.060206.

摘要

提出静电收集-能谱法测氡原理，初步建立静电收集?能谱法测氡系统。针对影响测量结果的铝箔、空气层等主要因素，建立合理的放射源和几何模型，运用Geant4软件进行模拟，对结果进行处理，得到了α粒子能量大小、α能谱的半高宽(Full Width at Half Maximum

FWHM)、能量分辨率、峰位差、能谱分辨能力与铝箔和空气层厚度的关系，确定了铝箔、空气层厚度最佳取值范围。并选择合适的铝箔、空气层厚度，在氡室内进行测量，验证了模拟分析的正确性，为静电收集?能谱法测氡装置的研制提供了可靠数据。

Abstract

Background: This research is to take energy spectrum of α particle into consideration in the measurement of radon. Purpose: We aim to find the influence factors of screening particle energy during the process of detector design. Methods: Based on the electrostatic collection radon measurement method

in order to study the influence factors of the measurement such as aluminum foil and air layer

the reasonable radiation source and geometric model are abstracted and calculated with Geant4 software. Results: The best ranges of aluminum foil thickness and air layer thickness are obtained by analyzing their relationship with α energy

the Full Width at Half Maximum (FWHM)

the energy resolution

the distance of peaks and the peaks screening power. Conclusion: With the results adopted above

the energy spectrum device is fabricated. Based on the α energy spectrum sampled in a radon chamber

the validity of this design has been proved. It provides a set of reliable data for the design of radon measuring device with electrostatic collection method.Cited

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