Abstract
Production of the radiopharmaceutical nuclide 177Lu, by direct thermal neutron activation of 176Lu, poses a discrepancy between experimentally measured and theoretically predicted activities. It was found that in the irradiation at the pneumatic transfer tube ('Rabbit') of the IRR-1 reactor, the exper./theor. ratio was 1.858±0.051. This ratio was determined also by comparing the activities of 177Lu and 176mLu. The significant deviation of 176Lu from the 1/v behavior explained this disagreement. The ratio exper./theor. is the Westcott g(T n )-factor and was used to yield the neutron temperature T n = 311±8 K.
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Nir-El, Y. Production of 177Lu by neutron activation of 176Lu. Journal of Radioanalytical and Nuclear Chemistry 262, 563–567 (2004). https://doi.org/10.1007/s10967-004-0476-9
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DOI: https://doi.org/10.1007/s10967-004-0476-9