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Title: Absolute cross sections for binary-encounter electron ejection by 95-MeV/u {sup 36}Ar{sup 18+} penetrating carbon foils

Abstract

Doubly differential electron velocity spectra induced by 95-MeV/u {sup 36}Ar{sup 18+} from thin carbon foils were measured at GANIL (Caen, France) by means of the ARGOS multidetector and the time-of-flight technique. The spectra allow us to determine absolute singly differential cross sections as a function of the emission angle. Absolute doubly differential cross sections for binary encounter electron ejection from C targets are compared to a transport theory, which is based on the relativistic electron impact approximation for electron production and which accounts for angular deflection, energy loss, and also energy straggling of the transmitted electrons. For the thinnest targets, the measured peak width is in good agreement with experimental data obtained with a different detection technique. The theory underestimates the peak width but provides (within a factor of 2) the correct peak intensity. For the thickest target, even the peak shape is well reproduced by theory.

Authors:
; ; ; ; ;  [1];  [2];  [3];  [4]; ;  [5]
  1. Istituto Naz. Fisica Nucleare and Dipartimento di Fisica e Astronomia, Via S. Sofia 64, I-95123 Catania, (Italy)
  2. Centre Interdisciplinaire de Recherche Ions Lasers, (CEA/CNRS UMR 6637/ENSICAEN), CIRIL-Ganil, Boite Postale 5133, F-14070 Caen Cedex 05, (France)
  3. DAPNIA/SPhN, CEA/Saclay, F-91191 Gif-sur-Yvette Cedex, (France)
  4. Physics Section, University of Munich, Am Coulombwall 1, D-85748 Garching, (Germany)
  5. INFN-LNS and Dipartimento di Fisica e Astronomia, Via S. Sofia 44, I-95123 Catania, (Italy)
Publication Date:
OSTI Identifier:
20640113
Resource Type:
Journal Article
Journal Name:
Physical Review. A
Additional Journal Information:
Journal Volume: 68; Journal Issue: 2; Other Information: DOI: 10.1103/PhysRevA.68.024701; (c) 2003 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1050-2947
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; ARGON IONS; CARBON; CATIONS; DIFFERENTIAL CROSS SECTIONS; ELECTRON EMISSION; ELECTRON SPECTRA; ELECTRONS; ENERGY LOSSES; FOILS; GANIL CYCLOTRON; ION BEAMS; MEV RANGE; RELATIVISTIC RANGE; SURFACES; TIME-OF-FLIGHT METHOD; TRANSPORT THEORY

Citation Formats

De Filippo, E, Lanzano, G, Aiello, S, Arena, N, Geraci, M, Pagano, A, Rothard, H, Volant, C, Jakubassa-Amundsen, D H, Anzalone, A, and Giustolisi, F. Absolute cross sections for binary-encounter electron ejection by 95-MeV/u {sup 36}Ar{sup 18+} penetrating carbon foils. United States: N. p., 2003. Web. doi:10.1103/PhysRevA.68.024701.
De Filippo, E, Lanzano, G, Aiello, S, Arena, N, Geraci, M, Pagano, A, Rothard, H, Volant, C, Jakubassa-Amundsen, D H, Anzalone, A, & Giustolisi, F. Absolute cross sections for binary-encounter electron ejection by 95-MeV/u {sup 36}Ar{sup 18+} penetrating carbon foils. United States. https://doi.org/10.1103/PhysRevA.68.024701
De Filippo, E, Lanzano, G, Aiello, S, Arena, N, Geraci, M, Pagano, A, Rothard, H, Volant, C, Jakubassa-Amundsen, D H, Anzalone, A, and Giustolisi, F. 2003. "Absolute cross sections for binary-encounter electron ejection by 95-MeV/u {sup 36}Ar{sup 18+} penetrating carbon foils". United States. https://doi.org/10.1103/PhysRevA.68.024701.
@article{osti_20640113,
title = {Absolute cross sections for binary-encounter electron ejection by 95-MeV/u {sup 36}Ar{sup 18+} penetrating carbon foils},
author = {De Filippo, E and Lanzano, G and Aiello, S and Arena, N and Geraci, M and Pagano, A and Rothard, H and Volant, C and Jakubassa-Amundsen, D H and Anzalone, A and Giustolisi, F},
abstractNote = {Doubly differential electron velocity spectra induced by 95-MeV/u {sup 36}Ar{sup 18+} from thin carbon foils were measured at GANIL (Caen, France) by means of the ARGOS multidetector and the time-of-flight technique. The spectra allow us to determine absolute singly differential cross sections as a function of the emission angle. Absolute doubly differential cross sections for binary encounter electron ejection from C targets are compared to a transport theory, which is based on the relativistic electron impact approximation for electron production and which accounts for angular deflection, energy loss, and also energy straggling of the transmitted electrons. For the thinnest targets, the measured peak width is in good agreement with experimental data obtained with a different detection technique. The theory underestimates the peak width but provides (within a factor of 2) the correct peak intensity. For the thickest target, even the peak shape is well reproduced by theory.},
doi = {10.1103/PhysRevA.68.024701},
url = {https://www.osti.gov/biblio/20640113}, journal = {Physical Review. A},
issn = {1050-2947},
number = 2,
volume = 68,
place = {United States},
year = {Fri Aug 01 00:00:00 EDT 2003},
month = {Fri Aug 01 00:00:00 EDT 2003}
}