Rapid Communications

Full Text / References

Measurement of Poloidal Flow Profiles Using a Mach Probe Array in HYBTOK-II Tokamak with RMP Fields

Masaaki OKAMOTO, Satoru SAKAKIBARA¹⁾, Naoya YOSHIMOTO²⁾, Takuya OHNO²⁾ and Noriyasu OHNO²⁾

National Institute of Technology, Ishikawa College, Tsubata, Ishikawa 929-0392, Japan

1)

National Institute for Fusion Science, Toki, Gifu 509-5292, Japan

2)

Graduate School of Engineering, Nagoya University, Nagoya 464-8603, Japan

(Received 30 March 2017 / Accepted 2 May 2017 / Published 12 June 2017)

Abstract

In magnetic confinement plasmas, plasma rotation plays an important role in the penetration and propagation processes of external RMP fields. To investigate the relation between the penetration of RMP fields and plasma flow, we have created a new type of Mach probe array to measure plasma flow profiles. The experimental results show that plasma flow around the q = 3 resonant surface decreases with increases in RMP fields.

Copyright (c) 2017 The Japan Society of Plasma Science and Nuclear Fusion Research

Keywords

Mach probe array, plasma flow, RMP fields, HYBTOK-II tokamak

DOI: 10.1585/pfr.12.1202027

Full Text

PDF format (594Kbytes)

References

• [1] T.C. Hender et al., Nucl. Fusion 32, 2091 (1992).
• [2] R.J. La Haye et al., Phys. Fluids B 4, 2098 (1992).
• [3] S.Takamura et al., Nucl. Fusion 43, 393 (2003).
• [4] I.H. Hutchinson, Phys. Plasmas 9, 1832 (2002).