[Table of Contents]

Plasma and Fusion Research

Volume 7, 1201033 (2012)

Rapid Communications

Transition in Plasma Fluctuation between Attached and Detached Plasmas
Katsuya OKAZAKI, Hirohiko TANAKA1), Noriyasu OHNO and Shin KAJITA
Nagoya University, Nagoya 464-8601, Japan
1)
National Institute for Fusion Science, Toki 509-5292, Japan
(Received 13 February 2012 / Accepted 28 February 2012 / Published 15 April 2012)

Abstract

The static and dynamic behaviors of detached plasmas have received considerable attention because the use of a detached divertor is thought to provide a promising method for reducing the heat flux to plasma-facing components. In this study, fluctuations were measured with an electrostatic probe as the plasma was changed from attached to detached states by increasing the neutral gas pressure. The transition from an attached plasma to a detached plasma was found to change the phase relation between the density and the potential.

Keywords

Detached plasma, fluctuation, turbulence, non-diffusive transport, statistical analysis

DOI: 10.1585/pfr.7.1201033

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References

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This paper may be cited as follows:

Katsuya OKAZAKI, Hirohiko TANAKA, Noriyasu OHNO and Shin KAJITA, Plasma Fusion Res. 7, 1201033 (2012).