Initially energetically forbidden internal conversion processes induced by a high intensity radiation field of appropriate frequency are discussed in the case of ${}^{99m}\mathrm{Tc}$ and ${}^{105m}\mathrm{Ag}$. Hindering effects of saturation and power broadening are taken into consideration as well. Results of a recent paper are also disputed.

• Received 6 January 1998

DOI:https://doi.org/10.1103/PhysRevC.57.3480