6533b826fe1ef96bd1283f0f

RESEARCH PRODUCT

Influence of the simultaneous calibration of multiple ring dosimeters on the individual absorbed dose

María Gracia-ochoaJavier VijandeJosé Calatayud-jordánMª Carmen Pujades-claumarchirantJuan Diego PalmaJorge Vilar-palopÁNgela SorianoC. Candela-juan

subject

Materials scienceDosimeterRadiation Dosimetersbusiness.industryMonte Carlo methodPublic Health Environmental and Occupational HealthCoverage probabilityGeneral Medicine030218 nuclear medicine & medical imaging03 medical and health sciences0302 clinical medicineOptics030220 oncology & carcinogenesisAbsorbed doseCalibrationCalibrationDosimetryComputer SimulationIrradiationRadiometryCalibration ISO 4037 Monte Carlo Personal dosimetry Ring dosimetersbusinessMonte Carlo MethodWaste Management and DisposalBeam (structure)

description

Abstract Ring dosimeters for personal dosimetry are calibrated in accredited laboratories following ISO 4037-3 guidelines. The simultaneous irradiation of multiple dosimeters would save time, but has to be carefully studied, since the scattering conditions could change and influence the absorbed dose in nearby dosimeters. Monte Carlo simulations using PENELOPE-2014 were performed to explore the need to increase the uncertainty of H p 0 .07 in the simultaneous irradiation of three and five DXT-RAD 707H-2 (Thermo Scientific) ring dosimeters with beam qualities: N-30, N-80 and N-300. Results show that the absorbed dose in each dosimeter is compatible with each of the others and with the reference simulation (a single dosimeter), with a coverage probability of 95% (k = 2). Comparison with experimental data yielded consistent results with the same coverage probability. Therefore, five ring dosimeters can be simultaneously irradiated with beam qualities ranging, at least, between N-30 and N-300 with a negligible impact on the uncertainty of H p 0 .07 .

yearjournalcountryeditionlanguage
2021-06-01Journal of Radiological Protection
https://doi.org/10.1088/1361-6498/abef53