Extreme ultraviolet spectroscopy of highly charged xenon and barium with a compact electron beam ion trap

Abstract

In this work we have investigated extreme ultraviolet emission spectra of highly charged xenon and barium in the wavelength range of 90–130Å. A compact electron beam ion trap equipped with a high resolution flat-field grazing incidence spectrometer was used to record spectra. The electron beam energy was tuned at 225, 280 and 460eV for xenon to produce Xe8+–Xe11+ and at 500, 550 and 670eV for barium to produce Ba18+–Ba21+. We compared the observed wavelength values with data available in the literature.