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Title: Radiation from mixed multi-planar wire arrays

The study of radiation from different wire materials in wire array Z-pinch plasma is a very challenging topic because it is almost impossible to separate different plasmas at the stagnation. A new approach is suggested based on planar wire array (PWA) loads to assess this problem. Multi-planar wire arrays are implemented that consist of few planes, each with the same number of wires and masses but from different wire materials, arranged in parallel rows. In particular, the experimental results obtained with triple PWAs (TPWAs) on the UNR Zebra generator are analyzed with Wire Ablation Dynamics Model, non-local thermodynamic equilibrium kinetic model, and 2D radiation magneto-hydrodynamic to illustrate this new approach. In TPWAs, two wire planes were from mid-atomic-number wire material and another plane was from alloyed Al, placed either in the middle or at the edge of the TPWA. Spatial and temporal properties of K-shell Al and L-shell Cu radiations were analyzed and compared from these two configurations of TPWAs. Advantages of the new approach are demonstrated and future work is discussed.
Authors:
; ; ; ; ; ; ;  [1] ;  [2] ;  [3] ;  [4] ; ;  [5]
  1. Physics Department, University of Nevada, Reno, Nevada 89557 (United States)
  2. Laboratoire de Physique des Plasmas, Ecole Polytechnique, 91128 Palaiseau (France)
  3. Sandia National Laboratories, Albuquerque, New Mexico (United States)
  4. Consultant to NRL through Engility Corp., Chantilly, Virginia 20151 (United States)
  5. Naval Research Laboratory, Washington DC 20375 (United States)
Publication Date:
OSTI Identifier:
22252009
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 21; Journal Issue: 3; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; ABLATION; ALLOYS; ATOMIC NUMBER; COMPARATIVE EVALUATIONS; K SHELL; L SHELL; LTE; MAGNETOHYDRODYNAMICS; MATERIALS; PLASMA; WIRES