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Abstract
The method of 100Mo metallic target preparation for production of 99mTc by proton irradiation in 100Mo(p,2n)99mTc reaction was demonstrated. For this purpose, pressing of molybdenum powder into pellets and their subsequent sintering in reductive atmosphere were applied. The influence of parameters such as molybdenum mass and time of both pressing and sintering on the 100Mo target durability was investigated. Under the optimized conditions, 100Mo metallic pellet targets with density of 9.95±0.06g/cm3 were obtained. Morphology and structure of pressed pellets before and after sintering were studied by using standard optical microscope and Scanning Electron Microscope (SEM). Nanoindentation technique was used to investigate the mechanical properties such as nanohardness and Young modulus. Prepared 100Mo pellets were successfully irradiated with protons and 99mTc was efficiently isolated.
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