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Proceedings Paper • Open Access

Two-wavelengths digital holography for erosion measurements inside the ITER Tokamak

Paper Abstract

The International Thermonuclear Experimental Reactor (ITER) Project is the next step in the transition from experimental studies of plasma physics to full-scale electricity-producing fusion power stations. There is a need for the regular measuring of the erosion and deposition at the wall once the reactor starts operating. An erosion and deposition monitor able to measure the changes in the surface shape is planned. We have shown that long distance shape measurements in challenging environmental conditions (strong vibrations) can be done by two-wavelength digital holography and thus this technique could be used for the erosion monitoring inside the ITER-Tokamak.

Paper Details

Date Published: 18 November 2019
PDF: 7 pages
Proc. SPIE 11189, Optical Metrology and Inspection for Industrial Applications VI, 111890I (18 November 2019); doi: 10.1117/12.2550453
Show Author Affiliations
G. Pedrini, Univ. Stuttgart (Germany)
A. Calabuig, Univ. Stuttgart (Germany)
G. Jagannathan, Fircroft Engineering Services (France)
M. Kempenaars, ITER Organization (France)
G, Vayakis, ITER Organization (France)
W. Osten, Univ. Stuttgart (Germany)

Published in SPIE Proceedings Vol. 11189:
Optical Metrology and Inspection for Industrial Applications VI
Sen Han; Toru Yoshizawa; Song Zhang; Benyong Chen, Editor(s)

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