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Summary form only given. The UV laser probing at 266 nm is a promising diagnostics for the Z-pinch plasma. Laser diagnostics at the wavelength 532 nm are not applicable for Z-pinches with an electron plasma density ne>5-1019 cm-3 because of the strong inverse bremsstrahlung absorption and refraction of the probing beam. UV laser probing has a significant advantage because the absorption increment...
Experiments are conducted on the 16-wire aluminum Z-pinch arrays with both slow and fast risetimes wherein the initiation, ablation, implosion, and stagnation phases are compared for both soldered and unsoldered arrays. Time-dependent X-ray signals and self-emission data are measured and collected using a XUV 4-frame camera and an optical streak camera. Results show that in negative polarity, soldering...
Summary form only given. Experiments with low-wire-number nested arrays from Al, stainless steel and brass wires have been performed on the 1 MA COBRA generator at Cornell University. Diagnostics included fast X-ray and EUV detectors, time-integrated X-ray pinhole cameras, a time-gated EUV/X-ray imaging pinhole camera, time-gated and time-integrated X-ray spectrometers, an optical streak camera and...
Implosion characteristics of cylindrical arrays of aluminum (Al) or tungsten (W) wires with low number of wires were studied on the 1-MA 100-150-ns current rise time COBRA generator at Cornell University using X-ray/extreme ultraviolet detectors, time-gated cameras, spectrometers, and electrical diagnostics. Total radiation yields ET of 2.8 and 4.1 kJ were measured for Al and W, respectively. The...
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