نوع مقاله : مقاله پژوهشی
نویسندگان
پژوهشکده رآکتور و ایمنی هستهای، پژوهشگاه علوم و فنون هستهای، سازمان انرژی اتمی ایران، صندوق پستی: 836-14395، تهران- ایران
کلیدواژهها
عنوان مقاله English
نویسندگان English
60Co is used as a major industrial radioactive source in food and medical equipment sterilization. KCi sources can be used for laboratory research, however, few industrial centers utilize these sources for irradiating agricultural products. Hence, in this study, the potential of producing tens of kCi from 60Co sources in the Tehran research reactor has been investigated through the MCNPX code. Different assemblies including 59Co rods were modeled by a computational code. In addition, the loading of the 59Co rod assembly in different arrangements of the Tehran research reactor core was investigated. The 59Co production yield was calculated in each case. The results of this study show that by optimizing the 59Co rod assembly in a 27-fuel 1401-year core arrangement of the Tehran Research Reactor, it is possible to achieve about 40 kCi of 60Co product after 3 years of irradiation. The use of a beryllium reflector with optimized geometry can reduce the negative reactivity caused by the 59Co assembly loading. Also, loading the cobalt-59 assembly at the periphery of the equilibrium core of the Tehran research reactor can lead to the production of about 23 kCi of cobalt-60.
کلیدواژهها English