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A 1 MW 170 GHz long pulse gyrotron is required for a power source of the electron cyclotron heating and current drive (EC H&CD) system on ITER (International Thermonuclear Experimental Reactor). In the ITER gyrotron development of JAEA (Japan Atomic Energy Agency), a stable 1 MW 170 GHz oscillation has been achieved at CW-relevant pulse duration (800 s), which is a twice of burning time of ITER...
The launcher of a high power millimeter wave is designed for electron cyclotron heating system of ITER plasma. The quasi-optical system was adopted for a transmission lines in the launcher, which simplify the configuration largely comparing with the reference design of the waveguide arrays, and that the heat load was reduced by less than half. On the high power experiment with transmission line of...
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