The correction factors for UD802 dosimeters irradiated with different radiation energies and at different incidence angles

• Published in: Journal of radiological protection 2021-09, Vol.41 (3), p.526-538
• Main Authors: Grygier, Agata, Skubacz, Krystian, Chałupnik, Stanisław
• Format: Article
• Language: English
• Subjects: calibration; different angles; electrons; photons; thermoluminescence dosimetry; UD802
• ISSN: 0952-4746; 1361-6498
• DOI: 10.1088/1361-6498/abfbee

Many laboratories around the world deal with protection against ionizing radiation. It is a very broad topic, covering both the protection of members of the public and workers exposed to ionizing radiation based on personal or environmental monitoring. The thermoluminescence detectors are commonly used for this purpose, which is accepted in most countries. The entire process of dose evaluation with such dosimeters can be divided into several steps. Undoubtedly, one of the most important is the calibration procedure. The use of the developed factors is only possible when the actual exposure conditions are well known. Of course, determining under what conditions the dosimeters were exposed is a very difficult task, but we believe that whenever possible, it should be done in order to evaluate the dose more precisely. Moreover, the calibration is performed using only the Cs-137 source. This article presents results of irradiation Panasonic UD-802 dosimeters in different radiation fields generated by Cs-137, Kr-85, Sr 90/Y-90 and X-ray tube, series N, and at different angles such as 0°, 30°, 60°, 90°. On the basis of the obtained results, the calibration coefficients were determined and correction factors in relation to calibration based on Cs-137 or Sr 90/Y-90 irradiated at 0°.