Low background laboratory design

JIAO Baoliang LV Jun

doi:10.11889/j.0253-3219.2013.hjs.36.020603

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Low background laboratory design

更新时间：2021-06-03

- Low background laboratory design
- NUCLEAR TECHNIQUES Vol. 36, Issue 2, Article number: 020603(2013)
- 作者机构：
  
  中国核电工程有限公司河北分公司
- 作者简介：
- 基金信息：
- DOI：10.11889/j.0253-3219.2013.hjs.36.020603
  CLC： TL817.2
- Published：2013
- 稿件说明：
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[1]焦保良,吕军.低本底实验室设计[J].核技术,2013,36(02):79-82.

JIAO Baoliang LV Jun. Low background laboratory design[J]. Nuclear techniques, 2013, 36(2): 020603
[1]焦保良,吕军.低本底实验室设计[J].核技术,2013,36(02):79-82. DOI： 10.11889/j.0253-3219.2013.hjs.36.020603.

JIAO Baoliang LV Jun. Low background laboratory design[J]. Nuclear techniques, 2013, 36(2): 020603 DOI： 10.11889/j.0253-3219.2013.hjs.36.020603.

摘要

低本底γ谱仪应用广泛

屏蔽性能良好的低本底实验室能有效降低室内本底值

减少本底对低本底γ谱仪测量结果的影响

目前关于低本底实验室设计的报道较少。本文研究设计了屏蔽性能良好的低本底实验室

有效地提高了仪器灵敏度。对各种影响因素（宇宙射线、氡及其子体、地球天然γ辐射、建筑材料）进行计算和分析后发现

氡及其子体对本底几乎没有影响

宇宙射线和建筑材料为主要影响因素。针对不同因素对本底的影响程度

采取了不同的屏蔽措施

设计了满足要求的低本底实验室。

Abstract

Background: Low-background gamma-ray spectrometer is used widely.Low-background laboratory with good shielding performance can reduce the indoor background values effectively

and reduce the impact of the background on low background gamma spectrometer measurements

but currently there were few literatures on the low background laboratory design.Purpose: This paper attempts to propose a design for a low background laboratory with good shielding performance

and effectively improve the sensitivity of instrument.Methods: We analyzed the various factors（cosmic ray

radon and its progeny

the earth’s natural gamma radiation

and building material） affecting the indoor background

and carried out calculation and analysis on different factor.Results: It is found that radon and radon progeny had almost no effect

and cosmic rays and building materials were the main influence factors.Conclusions: In view of the different influence factors on the background

we can design a low-background laboratory which meets the requirements by taking different shielding measures.

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