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Title: Effect of trailing mass on scaling of X-ray power in wire array Z-pinches

Abstract

At the time of the X-ray pulse a fraction of the total current remains in a low density trailing plasma surrounding the stagnated plasma column. The corresponding reduction of the magnetic energy delivered to the radiating pinch affects the radiation power. In a model presented in this paper we assume that the division of current between the pinch and the trailing mass is controlled by the onset of ion acoustic turbulence in the trailing plasma. We will discuss the scaling of the radiation power with the amplitude and rise-time of the current, with array diameter and mass predicted by the model, and compare predictions with experimental data from the Z facility.

Authors:
 [1];  [2]; ;  [3]
  1. Blackett Laboratory, Imperial College, London SW7 2BZ (United Kingdom)
  2. Laboratory of Plasma Studies, Cornell University, Ithaca, NY 14853 (United States)
  3. Sandia National Laboratories, Albuquerque, NM 87185-1193 (United States)
Publication Date:
OSTI Identifier:
20729299
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 808; Journal Issue: 1; Conference: 6. international conference on dense Z-pinches, Oxford (United Kingdom), 25-28 Jul 2005; Other Information: DOI: 10.1063/1.2159323; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; AMPLITUDES; COMPARATIVE EVALUATIONS; ELECTRIC CURRENTS; EXPLODING WIRES; ION ACOUSTIC WAVES; IONS; LINEAR Z PINCH DEVICES; LONGITUDINAL PINCH; PLASMA; PLASMA DENSITY; PULSE RISE TIME; PULSES; TURBULENCE; X RADIATION

Citation Formats

Lebedev, S.V., Hammer, D.A., Cuneo, M.E., and Sinars, D.B. Effect of trailing mass on scaling of X-ray power in wire array Z-pinches. United States: N. p., 2006. Web. doi:10.1063/1.2159323.
Lebedev, S.V., Hammer, D.A., Cuneo, M.E., & Sinars, D.B. Effect of trailing mass on scaling of X-ray power in wire array Z-pinches. United States. doi:10.1063/1.2159323.
Lebedev, S.V., Hammer, D.A., Cuneo, M.E., and Sinars, D.B. Thu . "Effect of trailing mass on scaling of X-ray power in wire array Z-pinches". United States. doi:10.1063/1.2159323.
@article{osti_20729299,
title = {Effect of trailing mass on scaling of X-ray power in wire array Z-pinches},
author = {Lebedev, S.V. and Hammer, D.A. and Cuneo, M.E. and Sinars, D.B.},
abstractNote = {At the time of the X-ray pulse a fraction of the total current remains in a low density trailing plasma surrounding the stagnated plasma column. The corresponding reduction of the magnetic energy delivered to the radiating pinch affects the radiation power. In a model presented in this paper we assume that the division of current between the pinch and the trailing mass is controlled by the onset of ion acoustic turbulence in the trailing plasma. We will discuss the scaling of the radiation power with the amplitude and rise-time of the current, with array diameter and mass predicted by the model, and compare predictions with experimental data from the Z facility.},
doi = {10.1063/1.2159323},
journal = {AIP Conference Proceedings},
number = 1,
volume = 808,
place = {United States},
year = {Thu Jan 05 00:00:00 EST 2006},
month = {Thu Jan 05 00:00:00 EST 2006}
}