Versatile CAMAC–PC/AT system for data acquisition and control in high-resolution extreme-ultraviolet (EUV) spectroscopy following ion–atom and ion–molecule collisions

Abstract

This work is related to a recent development of a data acquisition and control system for high-resolution EUV spectroscopy following ion–atom and ion–molecule collisions. The system consists of a personal computer, an IEEE-488 interface board, and a CAMAC system, which includes a GPIB crate controller, a stepping motor controller, and two 32-bit up–down counters. A unique software ‘‘DATACQ’’ for data acquisition and control has been designed and tested to simplify complex spectroscopy applications. As a prototype case, EUV spectra of the Lyman series of He+ following simultaneous ionization and excitation of He by fast H+, H+2, and H+3 impact are presented here.