Esdiad beam widths

W. Riedl, D. Menzel

Research output: Contribution to journalArticlepeer-review

31 Scopus citations


In order to improve the understanding of the mechanisms leading to narrow ion beams in electronically stimulated desorption (ESDIAD: electron stimulated desorption ion angular distribution), the influences of surface temperature, coverage, primary energy of exciting electrons, azimuth, and isotope mass on the polar angle distributions of ions (O+, CO+) desorbed by electron impact from CO adsorbed on Ru(001) and Ni(110) have been studied. The results suggest that only part (one half to two thirds) of the observed widths is caused by thermal effects. Some conclusions about the general mechanisms of focused beam formation can also be drawn.

Original languageEnglish
Pages (from-to)494-516
Number of pages23
JournalSurface Science
Issue number2-3
StatePublished - 1 Jan 1989


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