Modification Of A Cylindrical Mirror Analyzer For High Efficiency Photoelectron Spectroscopy On Ion Beams
ATOMS(2020)
Abstract
An existing cylindrical mirror analyzer (CMA) that was initially equipped with eight channeltrons detectors has been modified to install large micro-channel plate detectors to perform parallel detection of electrons on an energy range corresponding to similar to 12% of the mean pass energy. This analyzer is dedicated to photoelectron spectroscopy of ions ionized by synchrotron radiation. The overall detection efficiency is increased by a factor of similar to 20 compared to the original analyzer. A proof of principle of the efficiency of the analyzer has been done for Xe5+ and Si+ ions and will allow photoelectron spectroscopy on many other ionic species.
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Key words
photoionization,electron spectroscopy,ion beam,synchrotron radiation
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