Electron emission from slow highly charged ions interacting with a metal surface

Conference · Sat Jun 05 04:00:00 EDT 1993 · AIP Conference Proceedings (American Institute of Physics); (United States)

OSTI ID:5642192

Aumayr, F; Kurz, H; Toeglhofer, K; Winter, H ^[1]

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1. Institut fuer Allgemeine Physik, TU Wien, Wiedner Haupstr. 8-10, A-1040 Wien (Austria)

Recent progress in investigating electron emission from slowly highly charged ions approaching a metal surface is discussed. In particular, new informations on generation and decay of transient multiply excited hollow atoms'' developing during these process have been gained from measurement of the statistics of emitted electrons (ES). ES and precise total electron yields derived from the former have been measured for normal incidence of slow (impact velocity 1--15[center dot]10[sup 4] ms[sup [minus]1]) multicharged ions Nq[sup +] (q[le]6), Ne[sup q+](q[le]10), Ar[sup q+](q[ge]16), Kr[sup q+](q[le]10), Xe[sup q+](q[le]10) and I[ital q][sup +]([ital q][le]25) on clean polycrystalline gold. A classical over-barrier approach as recently introduced by Burgdoerfer [ital et] [ital al]. 1991 has been extended and successfully applied to model the measured impact-velocity dependences of total electron yields. In this way contributions from different electron emission mechanisms could be identified.

• OSTI ID: 5642192
• Report Number(s): CONF-920948--
• Conference Information: Journal Name: AIP Conference Proceedings (American Institute of Physics); (United States) Journal Volume: 274:1
• Country of Publication: United States
• Language: English

Related Subjects

665300* -- Interactions Between Beams & Condensed Matter-- (1992-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ARGON IONS
CHARGED PARTICLES
COLLISIONS
CRYSTALS
ELECTRON EMISSION
ELEMENTS
EMISSION
ENERGY RANGE
EV RANGE
EV RANGE 01-10
GOLD
IODINE IONS
ION COLLISIONS
IONS
KRYPTON IONS
METALS
MULTICHARGED IONS
NEON IONS
NITROGEN IONS
POLYCRYSTALS
TRANSITION ELEMENTS
XENON IONS