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Proceedings Paper

Erosion and redeposition measurement in tokamaks using temporal phase shifting speckle interferometry in presence of vibrations
Author(s): P. Doré; E. Gauthier; J. M. Layet
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Paper Abstract

For erosion/redeposition measurement in tokamaks, an optical method based on digital speckle pattern interferometry is in development at CEA Cadarache. In order to preserve high spatial resolution, the temporal phase shifting method is used. However, this technique is sensitive to vibrations, which decreases the phase map quality. In this paper, we propose two techniques of phase calculation in presence of vibrations.

Paper Details

Date Published: 15 September 2006
PDF: 6 pages
Proc. SPIE 6341, Speckle06: Speckles, From Grains to Flowers, 634129 (15 September 2006); doi: 10.1117/12.695495
Show Author Affiliations
P. Doré, Commissariat à l'Énergie Atomique (France)
E. Gauthier, Commissariat à l'Énergie Atomique (France)
J. M. Layet, PIIM-CNRS, Univ. de Provence, Univ. de Saint Jérôme (France)

Published in SPIE Proceedings Vol. 6341:
Speckle06: Speckles, From Grains to Flowers
Pierre Slangen; Christine Cerruti, Editor(s)

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