Abstract
The photoelectron spectra of Sm, Nd, and Pr have been measured following laser-induced resonance ionization. The results obtained shed light on unexplained ionization processes observed by many workers in the field of resonance ionization mass spectrometry. Electron energy spectra can provide information about the initial energy level in a multiple-photon sequence leading to ionization. Also present is information about the low-lying energy levels of the atomic ions produced. A number of identified and unknown processes are presented for these three elements along with the results of power dependence measurements.
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