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William Stygar (Sandia National Laboratories)20/06/2017, 10:00Pulsed Power Physics and Technology, Components and HV InsulationOral
We have developed a conceptual design of a next-generation pulsed-power accelerator that is optimized for high-energy-density-physics experiments. The design is based on an architecture that is founded on two concepts: single-stage electrical-pulse compression and impedance matching [Phys. Rev. Accel. Beams 10, 030401 (2007); 18, 110401 (2015)]. The prime power source of the machine...
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Casey Rodgers20/06/2017, 10:30Pulsed Power Physics and Technology, Components and HV InsulationOral
A fast rise time air insulated Linear Transformer Driver (LTD) has been constructed by a collaboration between the University of New Mexico and the Naval Research Laboratory to drive high energy density physics experiments. The LTD is comprised of 12 bricks, each consisting of two 100 kV capacitors tied to a multi-electrode low inductance switch. Details of the construction, including...
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Dr Zicheng Zhang (National University of Defense Technology)20/06/2017, 10:45Pulsed Power Physics and Technology, Components and HV InsulationOral
Recent trends in the further development of pulsed power technology are towards higher power, longer duration and more compact structures. Compact pulsed power generators based on a Tesla transformer, configured using coaxial pulse forming lines, are widely used in the application of pulsed power systems. Limited by the low permittivity of the traditional energy storage medium (transformer...
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Ben Ulmen (Sandia National Laboratories)20/06/2017, 11:00Pulsed Power Physics and Technology, Components and HV InsulationOral
Large multi-megampere pulsed power accelerators face current loss issues in combining multiple magnetically insulated transmission lines (MITLs) into a single radial disk feed for loads such as Z-pinch radiation sources, shock physics experiments and fusion studies. The method used in many of these machines is the post-hole convolute (PHC) where the MITLs are joined very near the load region....
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Mr Zhou Liangji (Institute of Fluid Physics, CAEP)20/06/2017, 11:15Pulsed Power Physics and Technology, Components and HV InsulationOral
Linear transformer driver (LTD) is a new technical approach that can deliver fast high current and high voltage pulses with very compact devices. Traditional LTDs generate sinusoidal shape pulse by LC discharge, while many situations such as FXR and HPM need square pulse. This paper presents a new technical scheme for square pulse LTD in which simplified PFN take the place of LC “bricks” in...
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R. D. McBride (University of Michigan)20/06/2017, 11:30High-Energy Density Physics and TechnologyOral
The Michigan Accelerator for Inductive Z-pinch Experiments (MAIZE) is a 3-m-diameter, single-cavity Linear Transformer Driver (LTD). MAIZE supplies a fast electrical pulse (0–1 MA in 100 ns) to various experimental configurations, including wire-array z-pinches and cylindrical foil loads. MAIZE is the first LTD of its kind in the United States, and it has been operational at the University...
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Mr changhao bian (Chongqing University)20/06/2017, 11:45Pulsed Power Physics and Technology, Components and HV InsulationOral
Abstract: Bipolar pulses have advantages in reducing muscle contraction and increasing electric field uniformity in the treatment of tumors. In order to study the bio-medical effects in the treatment of tumors exposed to bipolar and high pulse repetition frequency (PRF) nanosecond pulse electric fields, a compact pulse generator which meets the requirements above is needed. A novel...
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A.S. Chuvatin (Ecole Polytechnique, France)20/06/2017, 12:00Pulsed Power Physics and Technology, Components and HV InsulationOral
We describe new opportunities of pulse power multiplication using the load current multiplier concept (LCM) [1]. The LCMs were already demonstrated to increase current both in inductive energy storage and pulse forming line systems [2], including experiments at the enhanced current of 1.7 MA on Zebra [3]. Recent successful validation of this approach on Z for the current up to 10 MA [4] allows...
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Jiang Jihao (Institute of Fluid Physics, CAEP)20/06/2017, 12:15Pulsed Power Physics and Technology, Components and HV InsulationOral
The pulsed-power accelerator uses its parallel branches triggered to shape the load-current pulse as required for a material physics experiment. We obtained the energy efficiencies is only depended of the pulsed power accelerator impedance and the load impedance with any order of the branches triggered. It is the highest that the pulsed power accelerator impedance (impedance of the parrallel...
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