Electron Cyclotron Resonance-Preionization in the WT-1 Tokamak

Teruji Cho; Masahiko Nakamura; Shin Kubo; Teruo Saito; Yasushi Terumichi; Yasuji Hamada; Shigetoshi Tanaka

doi:10.1143/JPSJ.53.187

Journal of the Physical Society of Japan

Online ISSN : 1347-4073
Print ISSN : 0031-9015
ISSN-L : 0031-9015

Electron Cyclotron Resonance-Preionization in the WT-1 Tokamak

Teruji Cho, Masahiko Nakamura, Shin Kubo, Teruo Saito, Yasushi Terumichi, Yasuji Hamada, Shigetoshi Tanaka

著者情報

ジャーナル認証あり

1984 年 53 巻 1 号 p. 187-192

DOI https://doi.org/10.1143/JPSJ.53.187

詳細

抄録

Injecting a high power microwave into the WT-1 toroidal device, production mechanism of toroidal plasma at the electron cyclotron resonance (ECR) is studied experimentally. Such ECR-plasma is used as microwave preionization of tokamak discharge. It is shown that ECR-preionization is useful for the reduction of loop voltage in the early stage, and the suppression of production of runaway electrons and hard X-ray in the quasi-steady stage.