Plasma and Fusion Research

Volume 2, 050 (2007)

Rapid Communications

High-Beta Plasma Confinement in TPE-RX During Pulsed Poloidal Current Drive Operation in Reversed-Field Pinch Plasma

Haruhisa KOGUCHI, Yoichi HIRANO, Hajime SAKAKITA, Kiyoyuki YAMBE, Toshio SHIMADA and Satoru KIYAMA

Plasma Frontier Group, Energy Technology Research Institute, National Institute of Advanced Industrial Science and Technology (AIST)

(Received 5 October 2007 / Accepted 2 November 2007 / Published 3 December 2007)

Abstract

A very high beta value was obtained during pulsed poloidal current drive (PPCD) operation in a reversed-field pinch (RFP) plasma during a TPE-RX experiment. Poloidal beta is almost equal to total beta in the RFP, and is as high as 30% near the end of PPCD operation. During the PPCD operation, the magnetic fluctuation associated with the dynamo effect is reduced, and improved confinement is realized, which results in this high beta value.

Keywords

reversed-field pinch (RFP), pulsed poloidal current drive (PPCD), high-beta plasma

DOI: 10.1585/pfr.2.050

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This paper may be cited as follows:

Haruhisa KOGUCHI, Yoichi HIRANO, Hajime SAKAKITA, Kiyoyuki YAMBE, Toshio SHIMADA and Satoru KIYAMA, Plasma Fusion Res. 2, 050 (2007).