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<i>Ka</i>-band Microwave Frequency Comb Doppler Reflectometer System for the Large Helical Device
Plasma and Fusion Research · 2014 · Vol. 9(0) · pp. 1402149–1402149
T. Tokuzawa✉(National Institute for Fusion Science)S. Inagaki(Kyushu University)A. Ejiri(The University of Tokyo)Ryota Soga(Nagoya University)I. Yamada(National Institute for Fusion Science)S. Kubo(National Institute for Fusion Science)M. Yoshinuma(National Institute for Fusion Science)K. Ida(National Institute for Fusion Science)C. Suzuki(National Institute for Fusion Science)K. Tanaka(National Institute for Fusion Science)Tsuyoshi Akiyama(National Institute for Fusion Science)Naohiro KASUYA(Kyushu University)K. Itoh(National Institute for Fusion Science)K. Y. Watanabe(National Institute for Fusion Science)H. Yamada(National Institute for Fusion Science)Kazuo Kawahata(National Institute for Fusion Science)LHD Experiment Group(National Institute for Fusion Science)
Abstract
A ka-band multi-channel Doppler reflectometer system was constructed for the Large Helical Device (LHD) using a comb frequency generator as a source. A filter bank system is utilized for precise quadrature phase detection, and preliminary back-scattered waves were obtained in LHD plasma experiments. In addition, a direct digital signal acquisition system was successfully demonstrated for providing a greater number of multi-channel measurements.
Magnetic confinement fusion researchParticle accelerators and beam dynamicsIonosphere and magnetosphere dynamicsLarge Helical DeviceComb generatorDoppler effectMicrowaveComb filterSIGNAL (programming language)Ka bandGenerator (circuit theory)OpticsChannel (broadcasting)
Funding
- Japan Society for the Promotion of Science
Citations
25
FWCI
3.02
field-weighted impact
References
8
Percentile
92%
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<i>Ka</i>-band Microwave Frequency Comb Doppler Reflectometer System for the Large Helical Device
Plasma and Fusion Research · 2014 · 25 citations
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