Dosimetry techniques for measurements in 60Co irradiation facility

الملخص EN

A 60Co irradiation facility, Gamma Chamber 4000A, has recently become available at the National Center for Radiation Research and Technology (NCRRT), Egypt.

Dose rate for this irradiation facility was determined by using a Fricke dosimeter.

Dose mapping of the radiation field inside the chamber was performed using GafChromic™ Dosimetry Media and CdS photoresistor.

Special emphasis is given to comparisons between the dosimetric systems used by the manufacturer and dosimetry systems used in this study.

Computer programs were developed for the determination of relative dose rates.

A contour plotting routine was then used to obtain the isodose curves.