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Electron beam effects on the spectroscopy of satellite lines in aluminum X-pinch experiments

Abstract

Aluminum wire X-pinch experiments performed at the Cornell University XP pulsed power generator and at the Lebedev Institute BIN generator show detailed high resolution spectra for satellite lines of Li-like, Be-like, B-like, and C-like ions. These lines, which correspond to transitions originating from autoionizing levels, are observed in the direction of the anode with respect to the bright X-pinch cross point. The intensities of these satellites are much smaller or absent in the direction of the cathode. Such transitions are caused by collisions of ions with energetic electrons (5-15 keV) which are created by the inductive voltage drop between the cross point and the anode. A collisional-radiative model was constructed using a non-Maxwellian electron energy distribution consisting of a thermal Maxwellian part plus a Gaussian part to represent the high energy electron beam. The shapes of the observed satellite structures are consistent with the calculated spectrum for electron temperatures between 30-100 eV, and beam densities of about 10{sup -7} times the plasma electron density. (author). 3 figs., 7 refs.
Authors:
Abdallah, J Jr; Csanak, G; Clark, R E.H.; [1]  Faenov, A Ya; [2]  Hammer, D A; [3]  Pikuz, S A; Romanova, P N; Shelkovenko, T A [4] 
  1. Los Alamos National Laboratory, NM (United States)
  2. VNIIFTRI, Mendeleevo (Russian Federation)
  3. Cornell Univ., Ithaca, NY (United States)
  4. P.N. Lebedev Physical Inst., Moscow (Russian Federation)
Publication Date:
Dec 31, 1996
Product Type:
Conference
Report Number:
INIS-CZ-0003; CONF-960610-
Reference Number:
SCA: 700350; PA: AIX-28:055996; EDB-97:114504; SN: 97001834976
Resource Relation:
Journal Volume: 53; Journal Issue: 6; Conference: BEAMS `96: 11. international conference on high-power particle beams, Prague (Czech Republic), 10-14 Jun 1996; Other Information: PBD: 1996; Related Information: Is Part Of Beams `96. Proceedings of the 11th international conference on high power particle beams. Vol. II; Jungwirth, K.; Ullschmied, J. [eds.]; PB: [692] p.
Subject:
70 PLASMA PHYSICS AND FUSION; HARD CORE PINCH; X-RAY SPECTROSCOPY; HOT PLASMA; PLASMA SIMULATION; X-RAY SPECTRA; FINE STRUCTURE; ALUMINIUM; ALUMINIUM IONS; AUTOIONIZATION; DISTRIBUTION FUNCTIONS; ELECTRON TEMPERATURE; ELECTRONS; ENERGY LEVELS; EXPLODING WIRES; MULTICHARGED IONS
OSTI ID:
511198
Research Organizations:
Ceskoslovenska Akademie Ved, Prague (Czech Republic). Ustav Fyziky Plazmatu
Country of Origin:
Czech Republic
Language:
English
Other Identifying Numbers:
Journal ID: ISSN 0031--8949; Other: ON: DE97637209; ISBN 80-902250-4-7; TRN: CZ9726834055996
Availability:
INIS; OSTI as DE97637209
Submitting Site:
INIS
Size:
pp. 687-690
Announcement Date:

Citation Formats

Abdallah, J Jr, Csanak, G, Clark, R E.H., Faenov, A Ya, Hammer, D A, Pikuz, S A, Romanova, P N, and Shelkovenko, T A. Electron beam effects on the spectroscopy of satellite lines in aluminum X-pinch experiments. Czech Republic: N. p., 1996. Web. doi:10.1088/0031-8949/53/6/011.
Abdallah, J Jr, Csanak, G, Clark, R E.H., Faenov, A Ya, Hammer, D A, Pikuz, S A, Romanova, P N, & Shelkovenko, T A. Electron beam effects on the spectroscopy of satellite lines in aluminum X-pinch experiments. Czech Republic. doi:10.1088/0031-8949/53/6/011.
Abdallah, J Jr, Csanak, G, Clark, R E.H., Faenov, A Ya, Hammer, D A, Pikuz, S A, Romanova, P N, and Shelkovenko, T A. 1996. "Electron beam effects on the spectroscopy of satellite lines in aluminum X-pinch experiments." Czech Republic. doi:10.1088/0031-8949/53/6/011. https://www.osti.gov/servlets/purl/10.1088/0031-8949/53/6/011.
@misc{etde_511198,
title = {Electron beam effects on the spectroscopy of satellite lines in aluminum X-pinch experiments}
author = {Abdallah, J Jr, Csanak, G, Clark, R E.H., Faenov, A Ya, Hammer, D A, Pikuz, S A, Romanova, P N, and Shelkovenko, T A}
abstractNote = {Aluminum wire X-pinch experiments performed at the Cornell University XP pulsed power generator and at the Lebedev Institute BIN generator show detailed high resolution spectra for satellite lines of Li-like, Be-like, B-like, and C-like ions. These lines, which correspond to transitions originating from autoionizing levels, are observed in the direction of the anode with respect to the bright X-pinch cross point. The intensities of these satellites are much smaller or absent in the direction of the cathode. Such transitions are caused by collisions of ions with energetic electrons (5-15 keV) which are created by the inductive voltage drop between the cross point and the anode. A collisional-radiative model was constructed using a non-Maxwellian electron energy distribution consisting of a thermal Maxwellian part plus a Gaussian part to represent the high energy electron beam. The shapes of the observed satellite structures are consistent with the calculated spectrum for electron temperatures between 30-100 eV, and beam densities of about 10{sup -7} times the plasma electron density. (author). 3 figs., 7 refs.}
doi = {10.1088/0031-8949/53/6/011}
issue = {6}
volume = {53}
place = {Czech Republic}
year = {1996}
month = {Dec}
}