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

Abstract

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.

Authors:
; ; ;  [1]
  1. Institut fuer Allgemeine Physik, TU Wien, Wiedner Haupstr. 8-10, A-1040 Wien (Austria)
Publication Date:
OSTI Identifier:
5642192
Report Number(s):
CONF-920948-
Journal ID: ISSN 0094-243X; CODEN: APCPCS
Resource Type:
Conference
Journal Name:
AIP Conference Proceedings (American Institute of Physics); (United States)
Additional Journal Information:
Journal Volume: 274:1; Conference: 6. international conference on physics of highly charged ions, Manhattan, KS (United States), 28 Sep - 2 Oct 1992; Journal ID: ISSN 0094-243X
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; GOLD; ION COLLISIONS; MULTICHARGED IONS; ELECTRON EMISSION; ARGON IONS; EV RANGE 01-10; IODINE IONS; KRYPTON IONS; NEON IONS; NITROGEN IONS; POLYCRYSTALS; XENON IONS; CHARGED PARTICLES; COLLISIONS; CRYSTALS; ELEMENTS; EMISSION; ENERGY RANGE; EV RANGE; IONS; METALS; TRANSITION ELEMENTS; 665300* - Interactions Between Beams & Condensed Matter- (1992-)

Citation Formats

Aumayr, F, Kurz, H, Toeglhofer, K, and Winter, H. Electron emission from slow highly charged ions interacting with a metal surface. United States: N. p., 1993. Web.
Aumayr, F, Kurz, H, Toeglhofer, K, & Winter, H. Electron emission from slow highly charged ions interacting with a metal surface. United States.
Aumayr, F, Kurz, H, Toeglhofer, K, and Winter, H. Sat . "Electron emission from slow highly charged ions interacting with a metal surface". United States.
@article{osti_5642192,
title = {Electron emission from slow highly charged ions interacting with a metal surface},
author = {Aumayr, F and Kurz, H and Toeglhofer, K and Winter, H},
abstractNote = {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.},
doi = {},
url = {https://www.osti.gov/biblio/5642192}, journal = {AIP Conference Proceedings (American Institute of Physics); (United States)},
issn = {0094-243X},
number = ,
volume = 274:1,
place = {United States},
year = {1993},
month = {6}
}

Conference:
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