NEW TECHNIQUES FOR INDUCING PLASMA CURRENT IN LARGE TOKAMAK DEVICES.

R. A. Bolton, L. Bromberg, D. I. Brown, U. R. Christensen, D. L. Jassby, M. Okabayashi, C. E. Singer

Research output: Contribution to conferencePaper

Abstract

Up to 70% of the plasma current in large tokamak devices can be induced by the flux swing of the equilibrium field (EF), if the plasma pressure is increased very early during start-up and maintained at the MHD-limiting value throughout the current rise. In an illustration of this technique, a 4. 4-MA plasma current is induced by the EF coils assisted by a set of ″leaky OH″ coils and a small central solenoid. In a second example, current induction by the EF is supplemented by a 2. 0-MA neutral-beam-driven current, and the central transformer is eliminated entirely. A hybrid coil is described, wherein the TF and OH coils are merged into a single winding with greatly reduced net forces. These techniques can alleviate space restriction near the major axis in small-R tokamak reactors.

Original languageEnglish (US)
StatePublished - 1978
Event1978 American Nuclear Society Topical Meeting - Santa Fe, United States
Duration: May 9 1978May 11 1978
Conference number: 3

Conference

Conference1978 American Nuclear Society Topical Meeting
CountryUnited States
CitySanta Fe
Period5/9/785/11/78

ASJC Scopus subject areas

  • Engineering(all)

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    Bolton, R. A., Bromberg, L., Brown, D. I., Christensen, U. R., Jassby, D. L., Okabayashi, M., & Singer, C. E. (1978). NEW TECHNIQUES FOR INDUCING PLASMA CURRENT IN LARGE TOKAMAK DEVICES.. Paper presented at 1978 American Nuclear Society Topical Meeting, Santa Fe, United States. https://inis.iaea.org/search/search.aspx?orig_q=RN:10442951