1997•AIP conference proceedingsRequires access
Collisions and spectroscopy of low-energy highly-charged ions using an ion trap
D. A. Church, J. Steiger, G. Weinberg, Belinda R. Beck, J. McDonald, L. Gruber, Dieter Schneider
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Abstract
Electron transfer from H2 to highly-charged Xeq+ (q=35, 43–46) and Thq+ (q=73–80) ions at center-of-mass energies near 6 eV has been studied using the RETRAP system at Lawrence Livermore National Laboratory. The ions were produced in the Electron Beam Ion Trap and retrapped in the Penning ion trap. Initial cross section data are in reasonable accord with the predictions of the absorbing sphere model, and true double capture is found to be about 25% of the total. The development with time of the charge of a single ion undergoing collisions has been observed non-destructively. Certain spectroscopic measurements are planned, following cooling of the stored ions to cryogenic temperatures.