Uncertainty evaluation of rapid measurement of radon exhalation rate

Zhiqiang LI; Detao XIAO; Guizhi ZHAO; Jian SHAN; Xijun WU; Qingzhi ZHOU

doi:10.11889/j.0253-3219.2017.hjs.40.040201

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Uncertainty evaluation of rapid measurement of radon exhalation rate

更新时间：2021-05-19

- Uncertainty evaluation of rapid measurement of radon exhalation rate
- NUCLEAR TECHNIQUES Vol. 40, Issue 4, Article number: 040201(2017)
- 作者机构：
  
  1.衡阳师范学院物理与电子工程学院衡阳 421008
  2.南华大学核科学技术学院衡阳 421001
- 作者简介：
- 基金信息：
  
  National Natural Science Foundation of China;National Natural Science Foundation of China;Key Project of Hunan Provincial Department of Education;Introduction of Talent Research Projects of Normal University;Industry University Research Project of Normal University
- DOI：10.11889/j.0253-3219.2017.hjs.40.040201
  CLC： TL816.2
- Received：26 November 2016，
  
  Revised：17 January 2017，
  
  Published：2017-04
- 稿件说明：
移动端阅览
Zhiqiang LI, Detao XIAO, Guizhi ZHAO, et al. Uncertainty evaluation of rapid measurement of radon exhalation rate[J]. Nuclear techniques, 2017, 40(4): 040201
DOI：

Zhiqiang LI, Detao XIAO, Guizhi ZHAO, et al. Uncertainty evaluation of rapid measurement of radon exhalation rate[J]. Nuclear techniques, 2017, 40(4): 040201 DOI： 10.11889/j.0253-3219.2017.hjs.40.040201.

摘要

氡析出率测量受外界环境因素影响较大，为科学合理地评定氡析出率快速测量结果的准确性。结合不确定度原理，建立氡析出率快速测量方法的理论分析模型，分析其不确定度来源，评定其不确定度。结果表明，快速测量方法在氡析出率0.39-2.62 Bq·m

-2

·s

-1

的标准装置上，105 min快速测量的结果其相对合成标准不确定度在12%以内。研究结果为氡析出率快速测量方法的置信程度评定提出了新的评价方法。

Abstract

Background

Rapid measurement of radon exhalation rate is influenced strongly by external environmental factors.

Purpose

This study aims to scientifically evaluate the accuracy of the measured result of radon exhalation rate according to the concept of uncertainty.

Methods

A theoretical analytical model was estimated to study the measurement method of radon exhalation rate. The origin of the uncertainty was analyzed and employed to evaluate the accuracy of the result.

Results

The result of the relative synthesis standard uncertainty diverges within 12% when the rapid measurement is applied on the standard device of the University of South China with a radon exhalation rate of 0.39-2.62 Bq·m

-2

·s

-1

in 105 min.

Conclusion

This study provides a new method to evaluate the rapid determination of radon exhalation standard device.

关键词

Keywords

references

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