Current status of pulse-power technology and applications at LBT, Nagaoka
1992
Tight focusing of an ion beam was obtained by "Plasma Focus Diode". In addition to two-dimensionally line-focusing reported previously, we achieved point focusing of the proton beam. Quick charging Blumlein PFL was successfully developed. Using saturable cores as a charging inductor, we succeeded in the reduction of prepulse and quick charging of the Blumlein line. Output pulse of voltage ∼ 580 kV and current ∼ 24 kA with current rise time of less than 16 ns. Various thin films were quickly prepared by Ion-Beam Evaporation (IBE) such as ZnS, YBCO, BaTiO 3 , BN, B, C, ITO, apatite, etc. Basic characteristics were studied of ablation plasma produced by the irradiation of ion beam on the targets. Highly-repetitive excimer laser with subsonic gas flow is developed by Ludwieg charge tube. Basic characteristics of gas dynamics are studied by simulation. We developed a new circuit to excite highly-repetitive excimer lasers, where a saturable transformer is used in magnetic pulse compressor. To control lightning artificially, we studied basic plasma channel produced by TEA-CO 2 lasers in air.
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