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Title: Kinetic electron emission for impact of multicharged ions on clean gold

Abstract

Theory and experimental studies of slow multicharged ion (MCI, charge state q) impact on solid surfaces regard emission of slow and fast electrons and soft X-rays from transient {open_quotes}hollow atoms{close_quotes} above, at and below the surface. Faster MCI also cause kinetic electron emission which depends on q in a not yet well understood manner regarding, e.g., momentum transfer from variably screened MCI to free target electrons, and electron promotion in collisional quasimolecules. Measured electron number statistics delivered highly accurate ({plus_minus} 4%) total slow electron yields for impact of H{sup +}, He{sup +}, He{sup 2+}, C{sup q+}, N{sup q+}, O{sup q+} (q{le} 6; impact energy E from below KE threshold up to 40{times}q keV) on clean polycrystalline gold. Characteristic variations of the electron number statistics with E, and differences in electron yield for varying projectile species at given q and E provide important hints on the relevant KE contribution.

Authors:
; ; ;  [1]
  1. Institut fuer Allgemeine Physik, Wien (Austria)
Publication Date:
OSTI Identifier:
394303
Report Number(s):
CONF-9605105-
Journal ID: BAPSA6; ISSN 0003-0503; TRN: 96:028959
Resource Type:
Journal Article
Journal Name:
Bulletin of the American Physical Society
Additional Journal Information:
Journal Volume: 41; Journal Issue: 3; Conference: 27. annual meeting of the Division of Atomic, Molecular and Optical Physics (DAMOP) of the American Physical Society (APS), Ann Arbor, MI (United States), 15-18 May 1996; Other Information: PBD: May 1996
Country of Publication:
United States
Language:
English
Subject:
66 PHYSICS; HYDROGEN IONS 1 PLUS; ION COLLISIONS; HELIUM IONS; CARBON IONS; NITROGEN IONS; OXYGEN IONS; GOLD; ELECTRON EMISSION; EV RANGE 100-1000; KEV RANGE 01-10; KEV RANGE 10-100; KEV RANGE 100-1000

Citation Formats

Winter, H P, Eder, H, Vana, M, and Aumayr, F. Kinetic electron emission for impact of multicharged ions on clean gold. United States: N. p., 1996. Web.
Winter, H P, Eder, H, Vana, M, & Aumayr, F. Kinetic electron emission for impact of multicharged ions on clean gold. United States.
Winter, H P, Eder, H, Vana, M, and Aumayr, F. Wed . "Kinetic electron emission for impact of multicharged ions on clean gold". United States.
@article{osti_394303,
title = {Kinetic electron emission for impact of multicharged ions on clean gold},
author = {Winter, H P and Eder, H and Vana, M and Aumayr, F},
abstractNote = {Theory and experimental studies of slow multicharged ion (MCI, charge state q) impact on solid surfaces regard emission of slow and fast electrons and soft X-rays from transient {open_quotes}hollow atoms{close_quotes} above, at and below the surface. Faster MCI also cause kinetic electron emission which depends on q in a not yet well understood manner regarding, e.g., momentum transfer from variably screened MCI to free target electrons, and electron promotion in collisional quasimolecules. Measured electron number statistics delivered highly accurate ({plus_minus} 4%) total slow electron yields for impact of H{sup +}, He{sup +}, He{sup 2+}, C{sup q+}, N{sup q+}, O{sup q+} (q{le} 6; impact energy E from below KE threshold up to 40{times}q keV) on clean polycrystalline gold. Characteristic variations of the electron number statistics with E, and differences in electron yield for varying projectile species at given q and E provide important hints on the relevant KE contribution.},
doi = {},
url = {https://www.osti.gov/biblio/394303}, journal = {Bulletin of the American Physical Society},
number = 3,
volume = 41,
place = {United States},
year = {1996},
month = {5}
}