Abstract

A research mass spectrometer has been constructed comprising four analyzing elements; two electrostatic and two magnetic 90° lenses, each with a mean radius of curvature of 50.8 cm. The instrument can be programmed for the mass and energy resolution of both primary and secondary ion species, making the spectrometer an attractive tool for studies of sputtering, charge exchange, and dissociation phenomena. A high isotopic abundance sensitivity (∼108/1) has also been achieved, a figure of merit that is important in nuclear measurements and special tracer applications.

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