[Table of Contents]

Plasma and Fusion Research

Volume 6, 2401104 (2011)

Regular Articles

Neutral Particle Transport Simulation around a V-Shaped Target Using DEGAS 2 Code
Hiroto MATSUURA, Naoki INAGAKI, Shinichiro KADO1), Suguru MASUZAKI2) and Akira TONEGAWA3)
Osaka Prefecture University, 1-1 Gakuen-chi, Sakai, Naka-ku 599-8531, Japan
1)
The University of Tokyo, Bunkyo-ku 113-8656, Japan
2)
National Institute for Fusion Science, Gifu 509-5292, Japan
3)
Tokai University, 1117 Kitakaname, Hiratsuka, Kanagawa 259-1292, Japan
(Received 6 December 2010 / Accepted 23 February 2011 / Published 27 July 2011)

Abstract

A method proposed most recently for heat flux reduction in a divertor is to use a so-called V-shaped target plate. A numerical study of neutral behavior around the V-shaped target in the divertor simulator, Test Plasma produced by Directed current device for sheet plasma (TPD-SheetIV), using DEGAS 2 is reported. The neutral distribution and H-alpha emission profile are modeled and compared for three types of targets, mainly for the low-density attached condition. Under this condition, excited atoms are produced by electron impact with recycled atoms near the target, and hence, H-alpha emission has a peak there.

Keywords

TPD-SheetIV, V-shaped target, detached plasma, DEGAS 2, gas puffing

DOI: 10.1585/pfr.6.2401104

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References

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This paper may be cited as follows:

Hiroto MATSUURA, Naoki INAGAKI, Shinichiro KADO, Suguru MASUZAKI and Akira TONEGAWA, Plasma Fusion Res. 6, 2401104 (2011).