Comparison of mass spectra obtained with low-energy ion and high-energy californium-252 fission fragment bombardment

A direct comparlson Is made of the mass spectra of several involatile compounds obtained by using 252Cf ission fragment lonlratlon and iow-energy Ion bombardment using klloelectronvol! K+ and Cs’ ions. The comparisons were made on the same samples mounted on the same folk and mass determinations were made by using the time-of-flight principle. A very hlgh degree of slmllarity was observed In the spectra obtained by the two Ionization methods for all the compounds Investlgated.