4.慣性核融合電源技術 : 4.2 KrFガスレーザー電源技術(<講座>核融合における電力技術IV)

概要

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The krypton-fluoride (KrF) laser is one of the more promising drivers for inertial confinement fusion because of its short wavelength, high efficiency, and capability of high repetition-rate operation. In high-energy KrF Iasers, laser gas is pumped by intense ( > 0.3 MV, > 100 kA, 0.1 - 1us) electron beams. To generate these beams, a short high voltage pulse is produced by a combination of Marx generator, pulse forming line and laser triggered output gap switch. In "Super"mainthe-ASHURA amplifier (60 cm aperture, 2 m long) at the Electrotechnical Laboratory, Tsukuba, Japan, 40 kJ e-beam energy is uniformly deposited in 270 ns by using 16 e-beam diodes (750 kV, 15Ω). For a few-Hz repetitive operations of the high-energy KrF laser, a combination of solid-state switch, pulse transformer and magnetic switch with saturable inductor is being developed for the e-beam power supply.
社団法人プラズマ・核融合学会の論文
1997-07-25