Preliminary Study on Irradiation Device of Fission Molybdenum-Technetium Production Based on China Advanced Research Reactor

As a multipurpose research reactor, fission molybdenum-technetium irradiation production is one of the wide applications of China Advanced Research Reactor CARR. The goal of this study is to achieve “online loading and unloading” of the target during fission molybdenum-99 (99Mo) to technetium-99m (99mTc) irradiation production without affecting the normal reactor operation and other irradiation channels, which will make CARR more efficient in performing irradiation tasks. This paper introduces the design principles, requirements and concept structural design of the irradiation device of fission 99Mo-99mTc.