PT Journal AU Calatayud-Jordan, J Candela-Juan, C Palma, JD Pujades-Claumarchirant, MC Soriano, A Gracia-Ochoa, M Vilar-Palop, J Vijande, J TI Influence of the simultaneous calibration of multiple ring dosimeters on the individual absorbed dose SO Journal of Radiological Protection JI J. Radiol. Prot. PY 2021 BP 384 EP 397 VL 41 IS 2 DI 10.1088/1361-6498/abef53 LA English DE ring dosimeters; personal dosimetry; calibration; Monte Carlo; ISO 4037 AB 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). ER