Abstract

Resonance Ionization Mass Spectrometry (RIMS) is a powerful tool for elemental and isotopic analysis. This multistep laser photoionization process, when coupled with conventional mass analysis, can provide exceptional performance in detectivity, dynamic range, and discrimination against interfering species. These properties can be used to great advantage both in the analysis of conventional analytical materials^1-3 and in the interrogation of surface and interfacial phenomenae⁴. Applications at Los Alamos include high dynamic range isotope ratio measurements, ground-water tracer measurements and optical damage studies. In this report we will discuss potential applications of a Free Electron Laser for RIMS analyses, particular emphasis will be placed on coupling FEL-based photoionization with synchronized laser desorption.

© 1988 Optical Society of America