Plasma current generation and sustainment by electron cyclotron waves in the WT-2 Tokamak

A. Ando, K. Ogura, H. Tanaka, M. Iida, S. Ide, K. Oho, S. Ozaki, M. Nakamura, T. Cho, T. Maekawa, Y. Terumichi, S. Tanaka

Research output: Contribution to journalArticlepeer-review

59 Citations (Scopus)

Abstract

By injection of microwave power PEC near the electron cyclotron (EC) frequency into an Ohmically heated (OH) plasma in the WT-2 tokamak after OH power is shut off, the plasma current is sustained and ramped up by the EC wave only, without OH power. Here, EC-driven current is generated by EC heating of the suprathermal electron beam in OH plasma. Further, when PEC is injected into plasma sustained by lower-hybrid- (LH-) driven current, the plasma current and its rampup rate increase. Here, EC-driven current is generated by EC heating of the mildly relativistic electrons in LH-driven plasma.

Original languageEnglish
Pages (from-to)2180-2183
Number of pages4
JournalPhysical review letters
Volume56
Issue number20
DOIs
Publication statusPublished - 1986
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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