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Use of an ‘Inter-Linked' Central Solenoid for Plasma Current Ramp-Up in a Tokamak Fusion Reactor

Makoto NAKAMURA, Kenji TOBITA and Hiroyasu UTOH

Japan Atomic Energy Agency, Rokkasho, Kamikita, Aomori 039-3212, Japan

(Received 13 July 2012 / Accepted 30 December 2012 / Published 13 February 2013)

Abstract

Use of an ‘inter-linked' (IL) central solenoid (CS) in a tokamak fusion reactor is proposed for achieving a sufficient amount of the CS magnetic flux swing for the plasma current I_p ramp-up with keeping the reactor size reasonable. It is shown that a large amount of the flux swing by the IL-CS, compared to the conventional (C) CS, is expected for a tokamak fusion reactor with the fusion power P_fus = 2 GW and the major radius R_p < 8.0 m, and that the IL-CS can generate a marginal amount of the magnetic flux swing to ramp up I_p only by the inductive way for a tokamak reactor with R_p = 6.5 m while the C-CS cannot a sufficient amount of the flux swing for the I_p ramp-up.

Copyright (c) 2013 The Japan Society of Plasma Science and Nuclear Fusion Research

Keywords

inter-linked central solenoid, magnetic flux swing, plasma current ramp-up, fusion reactor design

DOI: 10.1585/pfr.8.1205007

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References

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This paper may be cited as follows:

Makoto NAKAMURA, Kenji TOBITA and Hiroyasu UTOH, Plasma Fusion Res. 8, 1205007 (2013).