Development of 300 GHz Band Gyrotron for Collective Thomson Scattering Diagnostics in the Large Helical Device

Teruo SAITO; Yuusuke YAMAGUCHI; Yoshinori TATEMATSU; Masafumi FUKUNARI; Takumi HIROBE; Shunsuke TANAKA; Ryuji SHINBAYASHI; Takashi SHIMOZUMA; Shin KUBO; Kenji TANAKA; Masaki NISHIURA

doi:10.1585/pfr.12.1206013

Rapid Communications

Development of 300 GHz Band Gyrotron for Collective Thomson Scattering Diagnostics in the Large Helical Device

Teruo SAITO, Yuusuke YAMAGUCHI, Yoshinori TATEMATSU, Masafumi FUKUNARI, Takumi HIROBE, Shunsuke TANAKA, Ryuji SHINBAYASHI, Takashi SHIMOZUMA, Shin KUBO, Kenji TANAKA, Masaki NISHIURA

著者情報

キーワード: gyrotron, sub-THz, collective Thomson scattering, LHD

ジャーナルフリー

2017 年 12 巻 p. 1206013

DOI https://doi.org/10.1585/pfr.12.1206013

詳細

抄録

A 300 GHz pulse gyrotron has been developed for use in collective Thomson scattering (CTS) diagnostics in the Large Helical Device (LHD). Single-mode oscillation power of more than 320 kW was produced. The radiation beam has a Gaussian pattern. The frequency spectrum is very narrow and stable across the pulse width. No competing mode was observed in the oscillation pulse, including during the turn-on and turn-off phases.

責任著者(Corresponding author)

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