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为了适应医疗用品辐照灭菌新技术的需要,提高辐照装置使用效益,我们将本院原实验型钴—60辐照装置的钴源装载量由0.934PBq 增至2.32PBq,并对源室进行了技术改造。辐射防护水平测量结果,经省市等有关部门验收,符合国家放射防护标准。改造后的辐照装置,增加了安全措施,在离地2000mm 范围内,吸收剂量高程分布均匀度从原来的1.95降至1.34;达到国外自动传送辐照装置的水平。解决了利用实验型钴—60辐照装置开展工业规模辐照的生产技术问题。
In order to meet the needs of new radiation sterilization technology for medical supplies and improve the efficiency of the use of irradiation equipment, we increased the Cobalt source loading of the original experimental cobalt-60 irradiation device from 0.934PBq to 2.32PBq, Carried out technical transformation. Radiation protection level measurement results, the provincial and municipal departments such as acceptance, in line with national radiological standards. After the transformation of the irradiation device, an increase of safety measures, in the range of 2000mm from the ground, the absorbed dose elevation uniformity decreased from 1.95 to 1.34; to automatically reach the level of foreign irradiation device. Solve the use of experimental cobalt -60 irradiation device to carry out industrial-scale radiation production technology.