We report on the nature of ${}^{93m}\mathrm{Mo}$ isomer depletion as a result of nuclear excitation by electron capture in a resonant transfer process, accounting for highly excited open-shell atomic states to better reflect realistic beam-based conditions. The improved model provided an enhancement of ${}^{93m}\mathrm{Mo}$ depletion. The new probabilities for ${}^{93m}\mathrm{Mo}$ isomer depletion are compared with two available experimental results and previous models. The excited-state configurations provide probabilities that are a factor of about 20 higher than those obtained from the ground-state-configuration approach without Compton profiles.

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• Charge-transfer collisions
• Electronic excitation & ionization
• Isomer decays
• Low & intermediate energy heavy-ion reactions
• Nuclear structure & decays
• 90 ≤ A ≤ 149