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Using optimized attenuators in calibration facilities to increase width beam of uniform Gamma-radiation field
https://doi.org/10.32446/0368-1025it.2026-1-96-100
Abstract
This paper examines the optimization of one of the most important metrological characteristics of dosimetric X-ray and gamma-ray installations – the geometric size of the uniform field of the gamma radiation field. The influence of the geometric shape of lead attenuators in verification installations on the size of the uniform region of the gamma radiation field is analyzed. It is shown that the use of classically shaped attenuators leads to a significant reduction in the width beam of uniform, which limits the number of simultaneously verified dosimetric instruments designed for measuring the air kerma rate. Experimental measurements of the air kerma rate were conducted using a setup with various attenuator combinations, and a comparison with published data was made. Based on the results, an optimized attenuator shape is proposed, ensuring both the required attenuation factor and maintaining the size of the uniform region of the gamma radiation field. A design implementation of optimized attenuators is presented, protected by a patent from the Eurasian Patent Office, confirming the novelty of the proposed technical solution.
Keywords
Supporting agencies: The authors declares that no funds, grants, or other support were received during the preparation of this manuscript.
About the Author
K. V. Yaroshchyk
Radmetron Ltd
Belarus
Belarus
Kanstantsin V. Yaroshchyk, Leading Design Engineer of R&D
220084, Minsk, Skaryna st., 51/1
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Review
For citations:
Yaroshchyk K.V. Using optimized attenuators in calibration facilities to increase width beam of uniform Gamma-radiation field. Izmeritel`naya Tekhnika. 2026;75(1):96-100. (In Russ.) https://doi.org/10.32446/0368-1025it.2026-1-96-100
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