用于校准的混合伽马密封源的制备和评价

Ahmed Abdelsadek, MAHMOUD HASAN, Muhammad mansy, Mohamed Breky
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Preparation and evaluation of mixed gamma sealed source for calibration purpose
The sealed sources containing a mixture of 370±5% kBq (  10±5% µCi) 137 Cs, 740±5% kBq (  20±5% µCi) 60 Co , and 740±5% kBq (  20±5% µCi) 152 Eu based on inorganic exchangers, preparations were made, standards were met, and quality checks were passed satisfactorily. ZrSiW matrix retaining 137 Cs, 60 Co, and 152 Eu, the core of the sealed source for the appropriate radioisotope was cleaned and dried before use. A circular disc-shaped acrylic canister was filled with a calibrated quantity of the matrix. Before being sealed, the source underwent quality control inspections, followed by radiometric standardization and encapsulation, before being placed on the local market to calibrate radiation detection and measurement equipment.
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