Observation of collective inner-shell effects for protons backscattered from the Al(110) surface

P. L. Grande, A. Hentz, G. Schiwietz, D. Starodub, Eric Garfunkel, T. Gustafsson

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The surface peak of keV protons backscattered from a clean Al (110) surface has been studied in detail for three different scattering geometries. The corresponding energy-loss distributions are asymmetric due to the single and double ionization of the Al inner-shell electrons (L shell). Effects beyond the independent-electron model (inner-shell collective effects) have been observed by using Monte Carlo simulations for the ion ballistic and coupled-channel calculations for the inelastic energy loss. These effects decrease the width by up to 10% for the full width at half maximum. Correspondingly, the low-energy tail of the surface peak is reduced in intensity by more than 30% in the case of a large number of near central collisions as in shadowing and blocking geometries.

Original languageEnglish
Article number012902
JournalPhysical Review A
Volume72
Issue number1
DOIs
Publication statusPublished - Jul 2005

Fingerprint

protons
energy dissipation
geometry
ballistics
electrons
ionization
collisions
scattering
ions
simulation
energy

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Physics and Astronomy(all)

Cite this

Observation of collective inner-shell effects for protons backscattered from the Al(110) surface. / Grande, P. L.; Hentz, A.; Schiwietz, G.; Starodub, D.; Garfunkel, Eric; Gustafsson, T.

In: Physical Review A, Vol. 72, No. 1, 012902, 07.2005.

Research output: Contribution to journalArticle

Grande, P. L. ; Hentz, A. ; Schiwietz, G. ; Starodub, D. ; Garfunkel, Eric ; Gustafsson, T. / Observation of collective inner-shell effects for protons backscattered from the Al(110) surface. In: Physical Review A. 2005 ; Vol. 72, No. 1.
@article{cf212b12b6014f8e9208820ef6fec574,
title = "Observation of collective inner-shell effects for protons backscattered from the Al(110) surface",
abstract = "The surface peak of keV protons backscattered from a clean Al (110) surface has been studied in detail for three different scattering geometries. The corresponding energy-loss distributions are asymmetric due to the single and double ionization of the Al inner-shell electrons (L shell). Effects beyond the independent-electron model (inner-shell collective effects) have been observed by using Monte Carlo simulations for the ion ballistic and coupled-channel calculations for the inelastic energy loss. These effects decrease the width by up to 10{\%} for the full width at half maximum. Correspondingly, the low-energy tail of the surface peak is reduced in intensity by more than 30{\%} in the case of a large number of near central collisions as in shadowing and blocking geometries.",
author = "Grande, {P. L.} and A. Hentz and G. Schiwietz and D. Starodub and Eric Garfunkel and T. Gustafsson",
year = "2005",
month = "7",
doi = "10.1103/PhysRevA.72.012902",
language = "English",
volume = "72",
journal = "Physical Review A - Atomic, Molecular, and Optical Physics",
issn = "1050-2947",
publisher = "American Physical Society",
number = "1",

}

TY - JOUR

T1 - Observation of collective inner-shell effects for protons backscattered from the Al(110) surface

AU - Grande, P. L.

AU - Hentz, A.

AU - Schiwietz, G.

AU - Starodub, D.

AU - Garfunkel, Eric

AU - Gustafsson, T.

PY - 2005/7

Y1 - 2005/7

N2 - The surface peak of keV protons backscattered from a clean Al (110) surface has been studied in detail for three different scattering geometries. The corresponding energy-loss distributions are asymmetric due to the single and double ionization of the Al inner-shell electrons (L shell). Effects beyond the independent-electron model (inner-shell collective effects) have been observed by using Monte Carlo simulations for the ion ballistic and coupled-channel calculations for the inelastic energy loss. These effects decrease the width by up to 10% for the full width at half maximum. Correspondingly, the low-energy tail of the surface peak is reduced in intensity by more than 30% in the case of a large number of near central collisions as in shadowing and blocking geometries.

AB - The surface peak of keV protons backscattered from a clean Al (110) surface has been studied in detail for three different scattering geometries. The corresponding energy-loss distributions are asymmetric due to the single and double ionization of the Al inner-shell electrons (L shell). Effects beyond the independent-electron model (inner-shell collective effects) have been observed by using Monte Carlo simulations for the ion ballistic and coupled-channel calculations for the inelastic energy loss. These effects decrease the width by up to 10% for the full width at half maximum. Correspondingly, the low-energy tail of the surface peak is reduced in intensity by more than 30% in the case of a large number of near central collisions as in shadowing and blocking geometries.

UR - http://www.scopus.com/inward/record.url?scp=27144536016&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=27144536016&partnerID=8YFLogxK

U2 - 10.1103/PhysRevA.72.012902

DO - 10.1103/PhysRevA.72.012902

M3 - Article

VL - 72

JO - Physical Review A - Atomic, Molecular, and Optical Physics

JF - Physical Review A - Atomic, Molecular, and Optical Physics

SN - 1050-2947

IS - 1

M1 - 012902

ER -