Plasma and Fusion Research
Volume 13, 3405036 (2018)
Regular Articles
- 1)
- National Institute for Fusion Science, National Institutes of Natural Sciences, 322-6 Oroshi-Cho, Toki-City, Gifu 509-5292, Japan
- 2)
- Nagoya University, Furo-Cho, Chikusa-Ku, Nagoya 464-8601, Japan
Abstract
A mode analysis technique of the millimeter-wave which propagates in the corrugated waveguide of the electron cyclotron resonance heating (ECRH) transmission line is proposed. The technique is based on the signals detected by beam-profile monitors (BPMs) developed and installed in the reflection plane mirror of the miterbends in the ECRH transmission line. The developed BPM consists of a mirror plate, Peltier-device array, and a heat-sink. The voltage signal of each Peltier device is related with the temperature of the mirror surface. The program which can analyze propagating-mode components using these signals is developed. The possibility of the propagating mode analyses using this code was confirmed using the artificially synthesized model data on the miterbend reflector.
Keywords
electron cyclotron resonance heating, mode analysis, corrugated waveguide, gyrotron, millimeter wave