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Title: Mid-Atomic-Number Cylindrical Wire Array Precursor Plasma Studies on Zebra

Abstract

The precursor plasmas from low wire number cylindrical wire arrays (CWAs) were previously shown to radiate at temperatures >300 eV for Ni-60 (94% Cu and 6% Ni) wires in experiments on the 1-MA Zebra generator. Continued research into precursor plasmas has studied additional midatomic-number materials including Cu and Alumel (95% Ni, 2% Al, 2% Mn, and 1% Si) to determine if the >300 eV temperatures are common for midatomic-number materials. Additionally, current scaling effects were observed by performing CWA precursor experiments at an increased current of 1.5 MA using a load current multiplier. Our results show an increase in a linear radiation yield of ~50% (16 versus 10 kJ/cm) for the experiments at increased current. However, plasma conditions inferred through the modeling of X-ray time-gated spectra are very similar for the precursor plasma in both current conditions.

Authors:
 [1];  [1];  [1];  [2];  [1];  [1];  [1];  [3]
  1. Univ. of Nevada, Reno, NV (United States)
  2. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
  3. Ecole Polytechnique (France)
Publication Date:
Research Org.:
Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1184459
Report Number(s):
SAND-2014-18312J
Journal ID: ISSN 0093-3813; 537888
Grant/Contract Number:  
AC04-94AL85000
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
IEEE Transactions on Plasma Science
Additional Journal Information:
Journal Volume: 43; Journal Issue: 8; Journal ID: ISSN 0093-3813
Publisher:
IEEE
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; kinetic modeling; wire array; x-ray spectra; Z-pinch

Citation Formats

Stafford, A, Safronova, A. S., Kantsyrev, V. L., Coverdale, Christine Anne, Weller, M. E., Shrestha, I., Shlyaptseva, V. V., and Chuvatin, A. S. Mid-Atomic-Number Cylindrical Wire Array Precursor Plasma Studies on Zebra. United States: N. p., 2014. Web. doi:10.1109/TPS.2014.2382072.
Stafford, A, Safronova, A. S., Kantsyrev, V. L., Coverdale, Christine Anne, Weller, M. E., Shrestha, I., Shlyaptseva, V. V., & Chuvatin, A. S. Mid-Atomic-Number Cylindrical Wire Array Precursor Plasma Studies on Zebra. United States. doi:10.1109/TPS.2014.2382072.
Stafford, A, Safronova, A. S., Kantsyrev, V. L., Coverdale, Christine Anne, Weller, M. E., Shrestha, I., Shlyaptseva, V. V., and Chuvatin, A. S. Tue . "Mid-Atomic-Number Cylindrical Wire Array Precursor Plasma Studies on Zebra". United States. doi:10.1109/TPS.2014.2382072. https://www.osti.gov/servlets/purl/1184459.
@article{osti_1184459,
title = {Mid-Atomic-Number Cylindrical Wire Array Precursor Plasma Studies on Zebra},
author = {Stafford, A and Safronova, A. S. and Kantsyrev, V. L. and Coverdale, Christine Anne and Weller, M. E. and Shrestha, I. and Shlyaptseva, V. V. and Chuvatin, A. S.},
abstractNote = {The precursor plasmas from low wire number cylindrical wire arrays (CWAs) were previously shown to radiate at temperatures >300 eV for Ni-60 (94% Cu and 6% Ni) wires in experiments on the 1-MA Zebra generator. Continued research into precursor plasmas has studied additional midatomic-number materials including Cu and Alumel (95% Ni, 2% Al, 2% Mn, and 1% Si) to determine if the >300 eV temperatures are common for midatomic-number materials. Additionally, current scaling effects were observed by performing CWA precursor experiments at an increased current of 1.5 MA using a load current multiplier. Our results show an increase in a linear radiation yield of ~50% (16 versus 10 kJ/cm) for the experiments at increased current. However, plasma conditions inferred through the modeling of X-ray time-gated spectra are very similar for the precursor plasma in both current conditions.},
doi = {10.1109/TPS.2014.2382072},
journal = {IEEE Transactions on Plasma Science},
number = 8,
volume = 43,
place = {United States},
year = {Tue Dec 30 00:00:00 EST 2014},
month = {Tue Dec 30 00:00:00 EST 2014}
}

Journal Article:
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