Acta Metrologica Sinica  2022, Vol. 43 Issue (4): 554-559    DOI: 10.3969/j.issn.1000-1158.2022.04.19
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Study on Radiation Characteristics and Energy Compensation of GM Tube
XU Yang1,GAO Fei1,ZHAO Rui2,NI Ning1,HUANG Shao-peng2,WANG Fei-fei1,LIN Min1
1. Key Laboratory of Measurement and Calibration Technology,  China Institute of Atomic Energy, Beijing 102413, China
2. National Institute of Metrology, Beijing 100029, China
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Abstract  Based on the X and γ-ray reference radiation field of the primary metering station of ionizing radiation of Defense Science & Technology Industry, the radiation characteristics of j613r type GM tube produced by a manufacturer were experimentally studied. Combined with the CT imaging system of the National Institute of Metrology, the internal structure size of the tube was accurately measured, and the energy compensation for the sensitive area was carried out. The results showed that the tube can be used for dose determination in the range of 10.62μSv/h~161.52mSv/h. The optimal compensation area of sensitive region is 88%~90% with the central slit is opened, and 0.81mm Pb compensation layer is applied. After compensation, the deviation of 137Cs is within ±20% in the range of 48~662keV, which can provide measurement components for personal dosimeter.
Key wordsmetrology      GM tube      radiation characteristics      plateau curve      energy compensation     
Received: 27 July 2020      Published: 08 April 2022
PACS:  TB98  
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XU Yang
GAO Fei
ZHAO Rui
NI Ning
HUANG Shao-peng
WANG Fei-fei
LIN Min
Cite this article:   
XU Yang,GAO Fei,ZHAO Rui, et al. Study on Radiation Characteristics and Energy Compensation of GM Tube[J]. Acta Metrologica Sinica, 2022, 43(4): 554-559.
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http://jlxb.china-csm.org:81/Jwk_jlxb/EN/10.3969/j.issn.1000-1158.2022.04.19      OR     http://jlxb.china-csm.org:81/Jwk_jlxb/EN/Y2022/V43/I4/554
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