[Table of Contents]

Plasma and Fusion Research

Volume 2, S1121 (2007)

Regular Articles

Modification of Tomography Technique for Two-Dimensional Spectroscopic Measurement in JT-60U Divertor Plasmas
K. FUJIMOTO, T. NAKANO, H. KUBO, K. SAWADA1), T. TAKIZUKA, K. SHIMIZU, H. KAWASHIMA and N. ASAKURA
Japan Atomic Energy Agency, Naka 311-0193, Japan
1)
Shinshu University, Nagano 380-8553, Japan
(Received 4 December 2006 / Accepted 22 June 2007 / Published 20 November 2007)

Abstract

Tomography techniques using the two measurement arrays were investigated. To evaluate test reconstruction methods with three combinations of calculation grid and observation view lines, a model distribution was reconstructed. The two-dimensional distribution generated on a calculation grid arranged parallel to the actual apparatus view lines was in better agreement with the model distribution than the distribution generated on a square grid. This parallel grid was applied to the reconstruction of the deuterium Balmer-series lines in the JT-60U detached divertor plasmas.

Keywords

tomography, detachment, two-dimensional distribution, deuterium Balmer-series lines, divertor plasma

DOI: 10.1585/pfr.2.S1121

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This paper may be cited as follows:

K. FUJIMOTO, T. NAKANO, H. KUBO, K. SAWADA, T. TAKIZUKA, K. SHIMIZU, H. KAWASHIMA and N. ASAKURA, Plasma Fusion Res. 2, S1121 (2007).