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Experimental Measurement and Monte Carlo Simulation the Correction Factor for the Medium-Energy X-ray Free-air Ionization Chamber

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Abstract

A key comparison has been made between the air-kerma standards of the National Institute of Metrology (NIM), China, and other Asia Pacific Metrology Programme (APMP) members in the medium-energy X-ray. This paper reviews the primary standard Free-air ionization chamber correction factor experimental method and Monte Carlo simulation method in the NIM. The experimental method and the Monte Carlo simulation method are adopted to obtain the correction factor for the medium-energy X-ray primary standard free-air ionization chamber at 100 kV, 135 kV, 180 kV, 250 kV four CCRI reference qualities. The correction factor has already been submitted to the APMP as key comparison data and the results are in good agreement with those obtained in previous studies. This study shows that the experimental method and the EGSnrc simulation method are usually used in the measurement of the correction factor. In particular, the application of the simulation methods is more common.

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Authors and Affiliations

  1. National Institute of Metrology, Beijing, 100069, China

    Jili Yu, Jinjie Wu, Zhenyu Liao & Zhenjie Zhou

  2. Chengdu University of Technology, Chengdu, 610059, China

    Jili Yu

  3. University of South China, Hengyang, 421001, China

    Zhenyu Liao

  4. Hebei University of Science and Technology, Shijiazhuang, 050018, China

    Zhenjie Zhou

Authors
  1. Jili Yu
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  2. Jinjie Wu
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  3. Zhenyu Liao
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  4. Zhenjie Zhou
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Correspondence to Jinjie Wu.

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Yu, J., Wu, J., Liao, Z. et al. Experimental Measurement and Monte Carlo Simulation the Correction Factor for the Medium-Energy X-ray Free-air Ionization Chamber. J. Korean Phys. Soc. 73, 1466–1472 (2018). https://doi.org/10.3938/jkps.73.1466

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  • DOI: https://doi.org/10.3938/jkps.73.1466

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