Dose mapping of the panoramic 60Co gamma irradiation facility at the Ruđer Bošković Institute - Geant4 simulation and measurements

Marija Majer; Matej Roguljić; Željka Knežević; Andrey Starodumov; Dinko Ferenček; Vuko Brigljević; Branka Mihaljević

doi:10.1016/j.apradiso.2019.108824

Dose mapping of the panoramic ⁶⁰Co gamma irradiation facility at the Ruđer Bošković Institute - Geant4 simulation and measurements

Appl Radiat Isot. 2019 Dec:154:108824. doi: 10.1016/j.apradiso.2019.108824. Epub 2019 Jul 29.

Authors

Marija Majer¹, Matej Roguljić², Željka Knežević², Andrey Starodumov³, Dinko Ferenček², Vuko Brigljević², Branka Mihaljević²

Affiliations

¹ Ruđer Bošković Institute, Bijenička Cesta 54, 10000, Zagreb, Croatia. Electronic address: mmajer@irb.hr.
² Ruđer Bošković Institute, Bijenička Cesta 54, 10000, Zagreb, Croatia.
³ Ruđer Bošković Institute, Bijenička Cesta 54, 10000, Zagreb, Croatia; Institute for Theoretical and Experimental Physics, Bolshaya Cheremushkinskaya Ul. 25, 117218, Moscow, Russia.

PMID: 31479818
DOI: 10.1016/j.apradiso.2019.108824

Abstract

The paper presents the dose mapping of the panoramic ⁶⁰Co gamma irradiation facility at the Ruđer Bošković Institute in Croatia. Both experimental (using ionisation chamber) and simulation (using the Geant4 Monte Carlo code) studies have been performed and compared. Measured and simulation dose rates are found to be in very good agreement and can be used for the absorbed dose determination in the irradiation chamber in everyday work. In order to get a complete description of the dose distribution in the facility, the transit dose, which has to be taken into consideration at low doses, was also experimentally determined.

Keywords: (60)Co gamma irradiation facility; Dose mapping; Dosimetry; Geant4; Transit dose.