Mid-Atomic-Number Cylindrical Wire Array Precursor Plasma Studies on Zebra
- Univ. of Nevada, Reno, NV (United States)
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- Ecole Polytechnique (France)
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.
- Research Organization:
- Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States
- Sponsoring Organization:
- USDOE National Nuclear Security Administration (NNSA)
- Grant/Contract Number:
- AC04-94AL85000
- OSTI ID:
- 1184459
- Report Number(s):
- SAND-2014-18312J; 537888
- Journal Information:
- IEEE Transactions on Plasma Science, Vol. 43, Issue 8; ISSN 0093-3813
- Publisher:
- IEEECopyright Statement
- Country of Publication:
- United States
- Language:
- English
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