225kV X光机管电压、管电流及固有过滤的研究

doi:10.3969/j.issn.1000-1158.2018.z1.28

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Abstract The tube voltage, tube current and inherent filtration of the X-ray machine are important parameters for the quality control of the X-ray machine. Measurement of X-ray tube voltage, tube current, and intrinsic filtration is necessary for the performance evaluation of X-ray machines and the establishment of reference radiation. Taking an X-ray machine with a tube voltage upper limit of 225kV as an example, the tube voltage of the X-ray machine is measured by the energy spectrum end point method, and the X-ray machine can display the tube voltage value within the range of ±0.2%; The finger-type ionization chamber PTW30013 measures the linearity of the high-energy X-ray tube current, and the measured tube current performance of the X-ray machine is good; the inherent filtration of the X-ray machine is measured by the half-value layer method, and the intrinsic filtration is 0.058mm Al.

Key words： metrology X-ray machine intrinsic filtering half-value layer

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TB98

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	Articles by authors
	LI Meng-shi
	WU Jin-jie
	GUO Si-ming
	LU Xing-qiang

Cite this article:

LI Meng-shi,WU Jin-jie,GUO Si-ming, et al. Study on 225kV X-ray Tube Voltage, Tube Current and Intrinsic Filtration[J]. Acta Metrologica Sinica, 2018, 39(6A): 127-.

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http://jlxb.china-csm.org:81/Jwk_jlxb/EN/10.3969/j.issn.1000-1158.2018.z1.28 OR http://jlxb.china-csm.org:81/Jwk_jlxb/EN/Y2018/V39/I6A/127