2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/81415In this paper we discuss the possibility of the excitation of nuclear electromagnetic transitions by the absorption of X-ray quanta produced in appropriate inner-shell atomic transitions, and the relevance of this process for the amplification of the gamma radiation from the excited nuclear states. It is concluded that the X-ray pumping technique might provide a useful approach for the development of a gamma ray laser.Latex manuscript, 10 pages, 3 jpg figureNuclear Experimenttext