[Table of Contents]

Plasma and Fusion Research

Volume 2, S1124 (2007)

Regular Articles

Application of Tomographic Imaging to Multi-pixel Bolometric Measurements
Y. LIU, N. TAMURA, B. J. PETERSON, N. IWAMA1), S. KONOSHIMA2), LHD Experimental Group and the JT-60 team2)
National Institute for Fusion Science, Toki 509-5292, Japan
1)
Daido Institute of Technology, Nagoya 457-8530, Japan
2)
Japan Atomic Energy Agency, Naka Fusion Institute, Naka 311-0193, Japan
(Received 6 December 2006 / Accepted 5 April 2007 / Published 20 November 2007)

Abstract

An improved tomographic algorithm in the scheme of Tikhonov-Phillips regularisation method, has been employed for multi-pixel bolometric measurements in order to get as much information as possible while keeping the assumptions to a minimum. The effects of finite detector size have been taken into account with a full three dimensional treatment of the detector geometry. The application of tomographic imaging was implemented to a two-array AXUVD (Absolute eXtreme UltraViolet photodiode) camera on the Large Helical Device (LHD) and a two-dimensional infrared imaging bolometric (IRVB) pinhole camera on JT-60U. Pertinent examples of the results are presented both to illustrate the analysis techniques and to demonstrate the wealth of physics which can be studied.

Keywords

bolometer, infrared camera, plasma radiation, computed tomography

DOI: 10.1585/pfr.2.S1124

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References

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  • [4] B.J. Peterson et al., to be published in J. Nucl. Mater.
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This paper may be cited as follows:

Y. LIU, N. TAMURA, B. J. PETERSON, N. IWAMA, S. KONOSHIMA, LHD Experimental Group and the JT-60 team, Plasma Fusion Res. 2, S1124 (2007).