FD‐7 Dosimeters Irradiated in Different Radiation Environments: A Comparison Between Monte Carlo Simulations and Experiments

This work presents a comparison between experimental data and Monte Carlo simulations realized with particle and heavy ion transport code system to evaluate radiation transport in commercial FD‐7 radiophotoluminescent (RPL) glass dosimeters exposed to different radiation environments. The analysis is performed for photon and electron, representative of experimental irradiation conditions encountered in research and industrial facilities where RPL dosimeters are employed. Photon sources include Co‐60 gamma rays, X‐ray tubes with tungsten targets operating at 100, 160, and 225 kV, and high‐energy photons produced by 6 MeV electrons impinging on a tungsten target. Monoenergetic electron beams of 2.5 and 6 MeV are also studied. For each configuration, the depth‐dose distributions within the RPL dosimeter are analyzed to evaluate dose homogeneity across the detector volume. Conversion factors between absorbed dose in RPL and reference materials commonly used in dosimetry, such as water, air, and silica, are calculated. Experimental data from various irradiation campaigns realized using the mentioned sources are presented and used to validate the simulation methodology. Agreement between simulated and measured doses is found, supporting the validity of the modeling approach. The results provide a tool to better design irradiation test campaigns and for the interpretation of RPL readouts in a variety of irradiation conditions.