The paper presents the composition, physical operating principles, and metrological characteristics of GET 73-2022 Special State Primary Standard of the absorbed dose and absorbed dose rate to tissue-equivalent material of X-rays with a limiting photon energy of 10–60 keV. The functional capabilities of GET 73-2022 meeting the current needs of low-energy X-ray radiation therapy, which includes brachytherapy, are described. Absorbed dose and absorbed dose rate to tissue-equivalent material (water) are realized via the ionization method using primary measuring instruments, i.e., standard extrapolation ionization chambers: EK-R for realizing units in the fields of low-energy X-ray sources (X-ray tubes) and EK-I designed for work with radionuclide sources used in brachytherapy. Dosimetric measurements performed using GET 73-2022 comply with modern requirements for accuracy, as well as the realization and transfer range of the units.
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Government Decree No. 1847 "On approval of Measurements Pertaining to State Regulation in the Area of Measurement Uniformity Assurance" (as of 16 November 2020).
Rosstandart order No. 379 "On approval of Special State Primary Standard of the absorbed dose and absorbed dose rate to tissue-equivalent material of X-rays with a limiting photon energy of 10–60 keV" (as of February 16, 2022).
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Translated from Izmeritel’naya Tekhnika, No. 7, pp. 8–12, July 2022.
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Villevalde, A.Y., Oborin, A.V. Get 73-2022 Special State Primary Standard of the Absorbed Dose and Absorbed Dose Rate to Tissue-Equivalent Material of X-Rays with a Limiting Photon Energy of 10–60 keV. Meas Tech 65, 471–476 (2022). https://doi.org/10.1007/s11018-023-02106-y
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DOI: https://doi.org/10.1007/s11018-023-02106-y