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Proceedings Paper

Optical design of a dual wave band catadioptric endoscope for the Joint European Torus
Author(s): Vincenzo Greco; Giorgio Maddaluno
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Paper Abstract

In this paper we describe the optical design of a catadioptric endoscope for the Joint European Torus (JET). The JET is the flagship experiment in the European nuclear fusion research programme. It is a large tokamak (Russian acronym for “toroidal magnetic chamber”) system located at Culham (UK). At the centre of this machine there is a toroidal (ring - shaped) vacuum vessel where the plasma is confined by magnetic fields. The endoscope explores in two wave bands (4.2 μm - 4.4 μm and 0.6 μm - 0.7 μm) an entire cross section of the vacuum vessel. It then creates for each wave band an image onto a separate area image sensor, located 5500 mm away from the plasma behind a concrete shield. The endoscope performs two different functions namely: infrared thermography on plasma facing components and in vessel inspection.

Paper Details

Date Published: 18 February 2004
PDF: 10 pages
Proc. SPIE 5249, Optical Design and Engineering, (18 February 2004); doi: 10.1117/12.513429
Show Author Affiliations
Vincenzo Greco, Istituto Nazionale di Ottica Applicata (Italy)
Giorgio Maddaluno, Ente per le Nuove Tecnologie, l'Energia e l'Ambiente (Italy)


Published in SPIE Proceedings Vol. 5249:
Optical Design and Engineering
Laurent Mazuray; Philip J. Rogers; Rolf Wartmann, Editor(s)

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