skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Measurements of cross sections and resonance structures following electron-impact excitation/ionization of Na-like Kr and Xe

Abstract

We report high-resolution measurements of electron impact excitation and ionization cross sections for the Na-like ions Kr{sup 25+} and Xe{sup 43+}. Ions with ionization states centered on the Na-like configurations were produced in an electron beam ion trap (EBIT) using electrons with energies below the L shell ionization thresholds. The Na-like ions were exposed to an electron beam with an energy between 3 and 7 keV. The Na- and Ne-like ions were then extracted and their intensities measured as a function of the electron beam energy. Theoretical ionization cross sections were calculated using relativistic distorted wave methods. Complex resonance structures that appear in the computed cross sections are observed in the experimental results. These results are the first experimental observation of resonant-excitation-double-autoionization (REDA) in highly charged high-Z ions.

Authors:
; ; ; ;
Publication Date:
Research Org.:
Lawrence Livermore National Lab., CA (United States)
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
69419
Report Number(s):
UCRL-JC-112929; CONF-941129-25
ON: DE95011731
DOE Contract Number:
W-7405-ENG-48
Resource Type:
Conference
Resource Relation:
Conference: 13. international conference on the application of accelerators in research and industry, Denton, TX (United States), 7-10 Nov 1994; Other Information: PBD: 28 Sep 1994
Country of Publication:
United States
Language:
English
Subject:
66 PHYSICS; KRYPTON IONS; ELECTRON-ION COLLISIONS; XENON IONS; CROSS SECTIONS; IONIZATION; EXCITATION; MEETINGS; ELECTRON BEAM ION SOURCES; MULTICHARGED IONS

Citation Formats

Schneider, D., Dewitt, D., Knapp, D.A., Reed, K.J., and Chen, M.H. Measurements of cross sections and resonance structures following electron-impact excitation/ionization of Na-like Kr and Xe. United States: N. p., 1994. Web.
Schneider, D., Dewitt, D., Knapp, D.A., Reed, K.J., & Chen, M.H. Measurements of cross sections and resonance structures following electron-impact excitation/ionization of Na-like Kr and Xe. United States.
Schneider, D., Dewitt, D., Knapp, D.A., Reed, K.J., and Chen, M.H. Wed . "Measurements of cross sections and resonance structures following electron-impact excitation/ionization of Na-like Kr and Xe". United States. doi:. https://www.osti.gov/servlets/purl/69419.
@article{osti_69419,
title = {Measurements of cross sections and resonance structures following electron-impact excitation/ionization of Na-like Kr and Xe},
author = {Schneider, D. and Dewitt, D. and Knapp, D.A. and Reed, K.J. and Chen, M.H.},
abstractNote = {We report high-resolution measurements of electron impact excitation and ionization cross sections for the Na-like ions Kr{sup 25+} and Xe{sup 43+}. Ions with ionization states centered on the Na-like configurations were produced in an electron beam ion trap (EBIT) using electrons with energies below the L shell ionization thresholds. The Na-like ions were exposed to an electron beam with an energy between 3 and 7 keV. The Na- and Ne-like ions were then extracted and their intensities measured as a function of the electron beam energy. Theoretical ionization cross sections were calculated using relativistic distorted wave methods. Complex resonance structures that appear in the computed cross sections are observed in the experimental results. These results are the first experimental observation of resonant-excitation-double-autoionization (REDA) in highly charged high-Z ions.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Sep 28 00:00:00 EDT 1994},
month = {Wed Sep 28 00:00:00 EDT 1994}
}

Conference:
Other availability
Please see Document Availability for additional information on obtaining the full-text document. Library patrons may search WorldCat to identify libraries that hold this conference proceeding.

Save / Share: