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Title: Copper fine-structure K-shell electron impact ionization cross sections for fast-electron diagnostic in laser-solid experiments

The K-shell electron impact ionization (EII) cross section, along with the K-shell fluorescence yield, is one of the key atomic parameters for fast-electron diagnostic in laser-solid experiments through the K-shell emission cross section. In addition, copper is a material that has been often used in those experiments because it has a maximum total K-shell emission yield. Furthermore, in a campaign dedicated to the modeling of the K lines of astrophysical interest (Palmeri et al., 2012), the K-shell fluorescence yields for the K-vacancy fine-structure atomic levels of all the copper isonuclear ions have been calculated. In this study, the K-shell EII cross sections connecting the ground and the metastable levels of the parent copper ions to the daughter ions K-vacancy levels considered in Palmeri et al. (2012) have been determined. The relativistic distorted-wave (DW) approximation implemented in the FAC atomic code has been used for the incident electron kinetic energies up to 10 times the K-shell threshold energies. Moreover, the resulting DW cross sections have been extrapolated at higher energies using the asymptotic form proposed by Davies et al. (2013)
Authors:
 [1] ;  [1] ;  [2] ;  [3]
  1. Astrophysique et Spectroscopie, Université de Mons - UMONS, B-7000 Mons (Belgium)
  2. (Belgium)
  3. CELIA, Université de Bordeaux 1, F-33400 Talence (France)
Publication Date:
OSTI Identifier:
22458568
Resource Type:
Journal Article
Resource Relation:
Journal Name: Atomic Data and Nuclear Data Tables; Journal Volume: 102; Other Information: Copyright (c) 2014 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; COPPER; COPPER IONS; CROSS SECTIONS; DISTORTED WAVE THEORY; ELECTRONS; FINE STRUCTURE; FLUORESCENCE; GROUND LEVEL; IONIZATION; K SHELL; KINETIC ENERGY; METASTABLE STATES; RELATIVISTIC RANGE; THRESHOLD ENERGY; VACANCIES