Abstract
Transfer of 9 9 mTc impurity atoms formed in metallic molybdenum by the nuclear transformations [9 8Mo(n,γ)9 9Mo → β-decay] was studied. At annealing of the metal in the range of α → γ polymorphic transition, the accelerated diffusion (transfer rate >10- 1 7 m2 s- 1 at ≈1000 K) is accompanied by transfer of 9 9 mTc impurity atoms into the gas phase. This phenomenon can be used in the development of radiolysis-resistant 9 9Mo/9 9 mTc generators in which the parent molybdenum is obtained by radiation neutron capture.
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Alekseev, I.E., Antropov, A.E. Accelerated Transfer of 99mTc Impurity Atoms at Polymorphic Transition in Irradiated Molybdenum Metal. Radiochemistry 44, 366–369 (2002). https://doi.org/10.1023/A:1020620826748
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DOI: https://doi.org/10.1023/A:1020620826748