GM计数管辐射特性与能量补偿研究

doi:10.3969/j.issn.1000-1158.2022.04.19

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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 words： metrology GM tube radiation characteristics plateau curve energy compensation

Received: 27 July 2020 Published: 08 April 2022

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TB98

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	Articles by authors
	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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