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X-ray power increase from symmetrized wire-array Z-pinch implosions

Abstract

A systematic experimental study of annular aluminum-wire z-pinches on the Saturn accelerator shows that, for the first time, the measured spatial characteristics and x-ray powers can approach those of two-dimensional, radiation-magneto-hydrodynamic simulations when large numbers of wires are used. Calculations show that the implosion begins to transition from that of individual plasma wires to that of a continuous plasma shell, when the circumferential gap between wires in the array is reduced below 1.4 +1.3/-0.7 mm. This calculated gap coincides with the measured transition of 1.4 {+-} 0.4 mm between the observed regimes of slow and rapid improvement in power output with decreasing gap. In the plasma-shell regime, x-ray powers in excess of a factor of three over that generated in the plasma-wire region are measured. (author). 5 figs., 16 refs.
Authors:
Sanford, T W.L.; Allshouse, G O; Marder, B M [1] 
  1. Sandia Labs., Albuquerque, NM (United States); and others
Publication Date:
Dec 31, 1996
Product Type:
Conference
Report Number:
INIS-CZ-0002; CONF-960610-
Reference Number:
SCA: 700411; PA: AIX-28:056095; EDB-97:114609; SN: 97001835074
Resource Relation:
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. I; Jungwirth, K.; Ullschmied, J. [eds.]; PB: [684] p.
Subject:
70 PLASMA PHYSICS AND FUSION; EXPLODING WIRES; ALUMINIUM; TLP DEVICES; SOFT X RADIATION; CYLINDRICAL CONFIGURATION; ELECTRON TEMPERATURE; HARD CORE PINCH; HOT PLASMA; IMPLOSIONS; INERTIAL CONFINEMENT
OSTI ID:
511287
Research Organizations:
Ceskoslovenska Akademie Ved, Prague (Czech Republic). Ustav Fyziky Plazmatu
Country of Origin:
Czech Republic
Language:
English
Other Identifying Numbers:
Other: ON: DE97637662; CNN: USDOE Contract DE-AC04-94AL85000; ISBN 80-902250-3-9; TRN: CZ9726704056095
Availability:
INIS; OSTI as DE97637662
Submitting Site:
INIS
Size:
pp. 146-149
Announcement Date:
Sep 04, 1997

Citation Formats

Sanford, T W.L., Allshouse, G O, and Marder, B M. X-ray power increase from symmetrized wire-array Z-pinch implosions. Czech Republic: N. p., 1996. Web.
Sanford, T W.L., Allshouse, G O, & Marder, B M. X-ray power increase from symmetrized wire-array Z-pinch implosions. Czech Republic.
Sanford, T W.L., Allshouse, G O, and Marder, B M. 1996. "X-ray power increase from symmetrized wire-array Z-pinch implosions." Czech Republic.
@misc{etde_511287,
title = {X-ray power increase from symmetrized wire-array Z-pinch implosions}
author = {Sanford, T W.L., Allshouse, G O, and Marder, B M}
abstractNote = {A systematic experimental study of annular aluminum-wire z-pinches on the Saturn accelerator shows that, for the first time, the measured spatial characteristics and x-ray powers can approach those of two-dimensional, radiation-magneto-hydrodynamic simulations when large numbers of wires are used. Calculations show that the implosion begins to transition from that of individual plasma wires to that of a continuous plasma shell, when the circumferential gap between wires in the array is reduced below 1.4 +1.3/-0.7 mm. This calculated gap coincides with the measured transition of 1.4 {+-} 0.4 mm between the observed regimes of slow and rapid improvement in power output with decreasing gap. In the plasma-shell regime, x-ray powers in excess of a factor of three over that generated in the plasma-wire region are measured. (author). 5 figs., 16 refs.}
place = {Czech Republic}
year = {1996}
month = {Dec}
}