Parameters of ISO 4037 wide spectrum X-ray reference field
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https://doi.org/10.54939/1859-1043.j.mst.95.2024.72-75Keywords:
Air Kerma rate; SpekPy; Fluence spectrum; Physical quantity.Abstract
The parameters of the ISO-4037 wide spectrum (W-series) X-ray reference fields were simulated using the SpekPy web-based simulation software. One of the most important physical quantities (air Kerma rate) and other radiation quantities (X-ray fluence spectrum and its averaged energy, the first and the second half value layers, as well as the beam homogeneity coefficient) were also deduced. The comparison in radiation quantities between the simulated (obtained from this work) and the ISO-published data was performed to confirm the reliability of SpekPy simulations (the maximum discrepancy between them was less than 4.0%). The air Kerma rate trend as a function of the W-series X-ray reference field was investigated and presented in this work. The values of air Kerma rates can be applied in calibrations of wide-spectrum X-ray measuring devices.
References
[1]. International Standardization Organization, ISO 4037-1:2019; “X and gamma reference radiation for calibrating dosemeters and doserate meters and for determining their response as a function of photon energy - Part 1: Radiation characteristics and production methods”.
[2]. International Standardization Organization, ISO 4037-2-2019; “X and gamma reference radiation for calibrating dosemeters and doserate meters and for determining their response as a function of photon energy - Part 2: Dosimetry for radiation protection over the energy ranges from 8 keV to 1.3 MeV and 4 MeV to 9 MeV”.
[3]. International Standardization Organization, ISO 4037-3-2019; “X and gamma reference radiation for calibrating dosemeters and doserate meters and for determining their response as a function of photon energy - Part 3: Calibration of area and personal dosemeters and the measurement of their response as a function of energy and angle of incidence”.
[4]. https://spekpy.smile.ki.se/
[5]. International Commission on Radiation Units and Measurements, ICRU Report 95, “Operational Quantities for External Radiation Exposure”, (2020).
