Using a Scanner to Measure Absorbed Doses with Radiochromic Film Dosimeters
The article provides a sequence of steps for using RISØ calorimeters for calibration and subsequent use of B3 radiochromic film dosimeters (GEX corporation) and a scanner for measuring absorbed doses. Calibration was carried out with the help of electron beam accelerator in the range of absorbed dos...
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Published in | East European journal of physics no. 1; pp. 85 - 95 |
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Main Authors | , , , , |
Format | Journal Article |
Language | English |
Published |
V.N. Karazin Kharkiv National University Publishing
17.03.2022
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Subjects | |
Online Access | Get full text |
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Summary: | The article provides a sequence of steps for using RISØ calorimeters for calibration and subsequent use of B3 radiochromic film dosimeters (GEX corporation) and a scanner for measuring absorbed doses. Calibration was carried out with the help of electron beam accelerator in the range of absorbed doses of 3 – 40 kGy (measurement range of RISØ calorimeters).
In the course of the work, the following was carried out:
– calibration of B3 radiochromic dosimetry films using RISØ calorimeters;
– plotting a calibration curve for B3 radiochromic dosimetric films;
– calculation of approximation functions;
– development of a technique for using a flatbed scanner to measure absorbed doses;
– estimation of the measurement uncertainties of absorbed doses.
Accelerator operation parameters: scanning frequency of the accelerated electron beam – 5 Hz, pulse frequency – 120 Hz, electron energy – 5 MeV, electron beam current – 60 μA. The measurement error of the absorbed dose is 5.8 %. |
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ISSN: | 2312-4334 2312-4539 |
DOI: | 10.26565/2312-4334-2022-1-12 |