低能X射线空气比释动能国际关键比对

doi:10.3969/j.issn.1000-1158.2022.10.17

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Abstract In order to promote the unification of measurement values in the field of low-energy X-ray air kerma measurement in China and achieve international equivalence, National Institute of Metrology, China (NIM) measured the air kerma of low-energy X-ray absolutely with a plate free air ionization chamber which is the primary standard in 2018. Two transfer ionization chambers named Radcal-RC6M were calibrated in low energy X-ray radiation field at NIM and BIPM. The comparison results are equivalent to those of the BIPM within the range of 0.37% of the relative standard uncertainty. The comparison results have been included in the key comparison database (KCDB) of the BIPM.

Key words： metrology low energy X rays air-kerma key comparison uncertainty analysis BIPM.RI(I)-K2

Received: 05 November 2020 Published: 14 October 2022

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TB98

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	Articles by authors
	ZHAO Rui
	WU Jin-jie
	FAN Song
	WANG Pei-wei
	YU Ji-li

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ZHAO Rui,WU Jin-jie,FAN Song, et al. Key Comparison of the Air-kerma of the NIM and the BIPM in Low-energy X-rays[J]. Acta Metrologica Sinica, 2022, 43(10): 1359-1365.

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http://jlxb.china-csm.org:81/Jwk_jlxb/EN/10.3969/j.issn.1000-1158.2022.10.17 OR http://jlxb.china-csm.org:81/Jwk_jlxb/EN/Y2022/V43/I10/1359

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