A method for forming an inhalable isotope compound suitable for use in patient medical diagnosis, the method comprising the steps of: (a) electrolytic loading of a carbon crucible with the isotope； (b) sublimating any isotope carrier in the crucible； (c) ablating the isotope in a carbon crucible, forming an ablation aerosol； (d) directly delivering the aerosol for immediate use by a patient. The isotope can comprise technetium.
