Plasma and Fusion Research

Volume 8, 2405077 (2013)

Regular Articles

Numerical Estimation of Ohmic Loss of High Power Wideband Diplexer for ECCD System

Kohei ATSUMI, Tomoki YAMAGUCHI, Koji NAGASHIMA, Mikio SAIGUSA, Masafumi FUKUNARI¹⁾, Yasuhisa ODA¹⁾ and Keishi SAKAMOTO¹⁾

: College of Engineering, Ibaraki University, Hitachi, Ibaraki 316-8511, Japan
1): Japan Atomic Energy Agency, Naka, Ibaraki 311-0193, Japan

(Received 28 November 2012 / Accepted 2 May 2013 / Published 19 June 2013)

Abstract

A diplexer for high power millimeter wave has been developed as a fast switching device in ECCD system for improving a stabilizing efficiency of neoclassical tearing modes. The switching operation of diplexer was confirmed with the FDTD code developed in our laboratory and low power tests using a mock-up diplexer. The cooling design of half mirror will be a key issue of this development, so that the Ohmic loss of a miter bend and a half mirror of the ring resonator was estimated by the numerical simulations.

Keywords

diplexer, NTM, ECCD, fast switching device, half mirror

DOI: 10.1585/pfr.8.2405077

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References

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This paper may be cited as follows:

Kohei ATSUMI, Tomoki YAMAGUCHI, Koji NAGASHIMA, Mikio SAIGUSA, Masafumi FUKUNARI, Yasuhisa ODA and Keishi SAKAMOTO, Plasma Fusion Res. 8, 2405077 (2013).