PTB high performance compute cluster ; Dosimetry concepts and apparatus ; Models and simulations ; Radiation monitoring
Zusammenfassung
Depth dose curves from beta radiation sources (90Sr/90Y, 85Kr and 147Pm) of STUK and PTB (BSS2) were measured and compared to each other. Significant differences are obvious for 90Sr/90Y and imply different conversion coefficients from the basic quantity absorbed dose rate to tissue at 0.07 mm tissue depth, š·t(0.07), to the operational quantities š»p(0.07) and š»p(3) for normal (0Ā°) and oblique (45Ā° and 60Ā°) radiation incidence. The resulting STUK specific conversion coefficients were used to update STUKās measurement results in a recent international comparison measurement (EURAMET 1398) - which now agree significantly better with the corresponding reference values of the comparison. For 85Kr and 147Pm no differences at all between STUKās and PTBās sources were observed. Finally, accompanying radiation transport simulations were undertaken to investigate the difference between STUKās and PTBās 90Sr/90Y beta radiation sources - which could be reproduced by the simulations.
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Open Access Hybrid
Rechteinformation
CC BY 4.0 ; Creative Commons Attribution 4.0 License
Themenbereich der Metrologie
Ionisierende Strahlung
Innovationscluster
Systemische Metrologie
GeschƤftsfelder
Grundlagen der Metrologie
Zitierung
Huikari, J. & Behrens, R. (2024). Beta Depth Dose Curves at STUK and PTB: measurements and simulations. Journal of Instrumentation, 19, 1ā16. https://doi.org/10.1088/1748-0221/19/10/P10012
