Majer, Marija; Pasariček, Luka; Knežević, Željka (2024) Dose mapping of the 60Co gamma irradiation facility and a real irradiated product – Measurements and Monte Carlo simulation. Radiation Physics and Chemistry, 214 . ISSN 0969-806X
Abstract
A model of the 60Co gamma irradiation facility in Croatia has been developed using the Monte Carlo code PHITS for particle transport. For the high dose rate area (i.e. inside the source rack), the calculated dose rate distribution was compared with the measurements performed with the chemical ethanol-chlorobenzene dosimeters and good agreement was observed with a relative difference of up to 6%. For the low dose rate area (i.e., outside the source rack), the calculated dose rate distribution was compared with previous simulation (using Geant4) and experimental (using ionisation chamber) study and good agreement was observed with a relative difference of less than 5%. The application of the PHITS model in everyday practice has been successfully tested on a real product, a medical implant, commonly irradiated inside the source rack for the purpose of sterilization. It was found that the simulation and experimental dose maps agree very well. Both methods can be used and will improve everyday work in both radiation processing and research.
| Item Type: | Article | ||||||||
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| Uncontrolled Keywords: | 60Co irradiation facility ; radiation processing dosimetry ; dose mapping ; ECB dosimetry ; PHITS ; Monte Carlo simulation | ||||||||
| Subjects: | NATURAL SCIENCES > Physics > Biophysics and Medical Physics NATURAL SCIENCES > Interdisciplinary Natural Sciences > Radiation Science |
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| Divisions: | Division of Materials Chemistry | ||||||||
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| Depositing User: | Željka Knežević Medija | ||||||||
| Date Deposited: | 19 Dec 2025 07:04 | ||||||||
| URI: | http://fulir.irb.hr/id/eprint/10348 | ||||||||
| DOI: | 10.1016/j.radphyschem.2023.111280 |
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