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Summary form only given. Foils may soon become necessary to achieve the required mass for higher current-driven x-ray sources. They may also offer useful options for x-ray pulse shaping and as imploding liners for magnetized target fusion. This paper reports our latest design and experimental progress on the dominant instability, the magneto-Rayleigh-Taylor instability (MRT). Planar Al foils as thin...
Summary form only given. Experiments are underway at UM on the first 1-MA LTD to be operated in the USA following its development at the Institute of High Current Electronics in Tomsk, Russia. This LTD employs 80 capacitors and 40 spark-gap switches arranged in 40 "bricks" that each generate 25 kA when charged to +-100 kV. Initial experiments at UM generated nearly 1-MA into resistive loads...
Summary form only given. Post-hole convolutes are commonly used in large scale pulsed power devices to combine the current from several sources. The primary examples of convolute use are Load Current Multipliers (LCMs) and current combination from multiple Self-Magnetically Insulated Transmission Lines (MITLs). Sandia National Laboratory's Z-Machine utilizes a double post-hole convolute to combine...
We present designs, resistive-load test results and experimental plans of the first 1 MA z-pinch in the USA to be driven by a Linear Transformer Driver (LTD). The Michigan Accelerator for Inductive Z-pinch Experiments, (MAIZE), is based on the LTD developed at the Institute for High Current Electronics in collaboration with Sandia National Labs. This LTD utilizes 80 capacitors and 40 spark gap switches...
The contact resistance in a wire array z-pinch has a significant affect on both the level and uniformity of energy deposition in the wires. Typically wires are held taut against the electrodes by wire weights (-1-10 g depending on wire material and diameter). This can lead to contact resistance values of -90-99% of the load resistance. Previous techniques to reduce the contact resistance (i.e. soldering)...
Surface acoustic wave (SAW) devices using two-dimensional electron gas (2DEG) as interdigital transducers (IDTs) on AlGaN/GaN heterostructure has been demonstrated using a planar isolation technique based on the fluoride-based (CF4) plasma treatment technique. The RF characteristics of the SAW filters with planar 2DEG IDTs are compared with SAW devices that are made of metal IDTs or hybrid metal/2DEG...
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