[Table of Contents]

Plasma and Fusion Research

Volume 2, S1081 (2007)

Regular Articles


Measurement of Gas Composition Ratio of H-He Mixture Plasmas in Divertor Simulator MAP-II
Yosuke KUWAHARA, Shinichiro KADO1), Atsushi OKAMOTO2), Taiichi SHIKAMA, Yohei IIDA, Kiminori KURIHARA, Filippo SCOTTI and Satoru TANAKA
Department of Quantum Engineering and Systems Science, School of Engineering, The University of Tokyo, Tokyo 113-8656, Japan
1)
High Temperature Plasma Center, The University of Tokyo, Kashiwa, Chiba 277-8568, Japan
2)
School of Engineering, Tohoku University, 6-6-01-2 Aobayama, Sendai 980-8579, Japan
(Received 4 December 2006 / Accepted 22 May 2007 / Published 20 November 2007)

Abstract

The gas composition ratio inthe divertor region of a fusion reactor must be measured in order to evaluate its atomic-molecular processes precisely. In this research we propose a method to measure the gas composition ratio of He, H and H2 of the H-He mixture plasmas in divertor simulator MAP-II by using passive spectroscopy of the Balmer series of hydrogen atoms, the Fulcher-α band of hydrogen molecules and the He I emissions.


Keywords

H-He mixture plasma, gas composition ratio, CR model, Funcher-α band, MAP-II

DOI: 10.1585/pfr.2.S1081


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This paper may be cited as follows:

Yosuke KUWAHARA, Shinichiro KADO, Atsushi OKAMOTO, Taiichi SHIKAMA, Yohei IIDA, Kiminori KURIHARA, Filippo SCOTTI and Satoru TANAKA, Plasma Fusion Res. 2, S1081 (2007).