COMPARISON OF RADON EXHALATION RATE MEASUREMENTS ON REFERENCE DEVICE IN OPEN AND CLOSED LOOP BY ALPHAGUARD IN FLOW-THROUGH MODE-Reference-Cited by-同舟云学术

COMPARISON OF RADON EXHALATION RATE MEASUREMENTS ON REFERENCE DEVICE IN OPEN AND CLOSED LOOP BY ALPHAGUARD IN FLOW-THROUGH MODE

Published:2023-03-21 Issue:10 Volume:199 Page:1151-1157
ISSN:0144-8420
Container-title:Radiation Protection Dosimetry
language:en
Short-container-title:

Author:

Liu Shuaibin¹^ORCID,Lin Fen²,Fan Zhongkai³^ORCID,Hu Tao²,Mo Yixiang²,Yuan Shuai²,Xie Ruomei²,Li Huiying²,Sun Jiale²,Yi Haibo²,Cheng Linquan²,Liu Zhipeng²,Wu Jiulin²,Zhang Xinyi²,Yuan Hongzhi²,Tan Yanliang²

Affiliation:

1. College of Physics and Electronic Engineering, Hengyang Normal University , Hengyang, Hunan Province 421008 , China

2. College of Physics and Electronic Engineering , Hengyang Normal University, Hengyang, Hunan Province 421008, China

3. School of Nuclear Science and Technology, University of South China , Hengyang, Hunan Province 421001 , China

Abstract

Abstract Radon-222 (Rn-222) exhalation rate is vital for estimating radiation risk from many kinds of materials. AlphaGUARD measures the radon concentration based on the ionization chamber principle, which is currently recognized as a reference instrument to measure radon. In China, measurements of radon exhalation rate are performed by AlphaGUARD operated in flow-through mode on a reference device to verify measurement accuracy. These measurements are performed in both open and closed loop. AlphaGUARD can fast rapidly the variation of the radon concentration in the chamber, which is tightly pressed against the surface of the medium to accumulate the exhaled radon. When the model is used to obtain the radon exhalation rate, the radon exhalation rates obtained by nonlinear data fitting on the measured radon concentrations are similar to the reference value of the device. The difference of radon exhalation rate values of six measurements is small.

Funder

Hengyang Science and Technology Planning Project

Postgraduate Scientific Research Innovation Project of Hunan Province

Hunan Provincial Innovation Foundation for Postgraduate

National Natural Science Foundation of China

Publisher

Oxford University Press (OUP)

Subject

Public Health, Environmental and Occupational Health,Radiology, Nuclear Medicine and imaging,General Medicine,Radiation,Radiological and Ultrasound Technology

Link

https://academic.oup.com/rpd/article-pdf/199/10/1151/50684552/ncad063.pdf

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