Recent Experiments on the KSU EBIS
The KSU EBIS operates presently for the production of external ion beams at energies up to q x 4 keV and as an ion trap for electron-ion collisions with electron energies below 6 keV. Measurements of dielectronic recombination with heliumlike Ar have been carried out with the source using both the charge state equilibrium of the electronically monoenergetic plasma and the yield of X-rays from the source interior. These experiments yield information on both the state of the source plasma and the relevant ionization and recombination cross sections. The X-ray data show dielectronic recombination resonances both below and above the n = 1 to 2 excitation thresholds, and may be analyzed to yield an experimental cross section for L shell excitation in heliumlike argon. Extracted beams have been used to measure K X-ray and Auger electron production for Ar17+ on single crystal Ge targets. Results of these experiments and some source characteristics are presented and discussed.
C. L. Cocke et al., "Recent Experiments on the KSU EBIS," Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, vol. 53, no. 4, pp. 432-437, Elsevier, Apr 1991.
The definitive version is available at https://doi.org/10.1016/0168-583X(91)95421-9
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