High power experiment of 170 GHz gyrotron and mm-wave power transmission in JAEA

170GHzジャイロトロンの大電力実験とミリ波電力伝送

Oda, Yasuhisa; Kajiwara, Ken; Takahashi, Koji; Sakamoto, Keishi

In JAEA, development of high-power long-pulse gyrotrons is underway. The output power of the gyrotron was applied for high-power long-pulse tests of the transmission line (TL). The dual frequency gyrotron was developed and high power operations at 170 GHz and 137 GHz were carried out. The 170 GHz high power experiment of 40 m length ITER relevant TL was carried out and transmission efficiency and mode purity change caused by long pulse operation were measured. The mode purity at TL end degraded by 10% which was caused by the thermal deformation of TL components and MOU. Indeed the mode conversion loss increased by the long pulse operation less affected power transmission efficiency.

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発表会議名	:	20th ANS Topical Meeting on the Technology of Fusion Energy (TOFE 2012)
開催年月	:	2012/08
開催都市	:	Nashville
開催国	:	U.S.A.
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