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Charge exchange in low-energy (keV) and hyperthermal-energy (10-100eV) ion scattering. Final report, 1 April 1986-15 November 1987

Technical Report ·
OSTI ID:5403195
The overall research program described in this report is to investigate the interaction of low (keV) and hyperthermal (10-100 eV) ions with clean and adsorbate-covered metal surfaces; in particular, ion-surface charge-exchange processes. We report on the operation of the UHV scattering apparatus for the ion-scattering measurements, ongoing development and upgrade of the apparatus, the use of two ion-scattering simulations which together cover the entire energy range of interest, the further development of these simulations, and most importantly, the ongoing experiments to determine charge-transfer probabilities. The data presented are representative of the scattering spectra measured. Completed analysis of these and similar spectra will be presented in forthcoming papers. To date, the authors have measured spectra for Li+, Na+, K+, He+, Ne+, and Ar+ beams, ranging in energy from 50 eV to 4 keV, scattered from the <001> and <1-10> azimuths of Cu(110). Important features of these spectra have been identified with the scattering simulations.
Research Organization:
Cornell Univ., Ithaca, NY (USA). Lab. of Atomic and Solid State Physics
OSTI ID:
5403195
Report Number(s):
AD-A-187643/2/XAB
Country of Publication:
United States
Language:
English