医用诊断半值层测量仪校准影响因素的研究

doi:10.3969/j.issn.1000-1158.2023.01.18

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Abstract The half-value layer measurement is required in various diagnostic X-ray radiation source verification regulations or calibration specifications, and half value layer measuring instruments are also widely used, but the calibration method of half value layer measuring instruments has not been clear. The main influencing factors in the calibration of the half value layer measuring instrument are discussed. The results show that the detector angle has the greatest influence on the measurement results. Therefore, the half value layer measuring instrument to be calibrated should be placed in the center of the test plane during calibration, and the angle deviation should not exceed ±1°.

Key words： metrology;HVL;RQR;diagnostic X-ray radiation source calibration

Received: 08 February 2021 Published: 13 January 2023

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TB98

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	Articles by authors
	WEI Peng
	WANG Jia-wei
	LI De-hong
	MA Bo-xuan
	GUO Bin

Cite this article:

WEI Peng,WANG Jia-wei,LI De-hong, et al. Research on the Factors Influencing the Calibration of Medical Diagnostic Half-value Layer Instrument[J]. Acta Metrologica Sinica, 2023, 44(1): 127-131.

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http://jlxb.china-csm.org:81/Jwk_jlxb/EN/10.3969/j.issn.1000-1158.2023.01.18 OR http://jlxb.china-csm.org:81/Jwk_jlxb/EN/Y2023/V44/I1/127

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