Recent Progress on the Study of Nonthermal X-rays in High Energy Density Z-pinch Plasmas.
Abstract not provided.
Childers, R↗
Engineering topics
Stafford, A
Publications and source records attributed to Stafford, A.
Mid-Atomic-Number Cylindrical Wire Array Precursor Plasma Studies on Zebra
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.
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSIC↗