The production of I-131 for use in medicine can be accomplished by the neutron irradiation of tellurium, typically in the form of TeO. Unfortunately, the literature contains conflicting data concerning the I-131 yield as a function of neutron fluence, target mass, irradiation time and post-irradiation decay. In this work, the activity of the I-131 was determined using calculations and experimental verifications based on the interplay of these variables.
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