Journal Article

FZJ-2016-00192

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Optical Coatings as Mirrors for Optical Diagnostics

Marot, L. (Corresponding author) ; Arnoux, G. ; Huber, A. (Corresponding author)FZJ* ; Huber, V.FZJ* ; Mertens, P.FZJ* ; Sergienko, G.FZJ* ; Meyer, E. ; Contributors, J. E. T.

2016
Lifescience Global Mississauga

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Please use a persistent id in citations: http://hdl.handle.net/2128/12350  doi:10.6000/2369-3355.2015.02.03.1

Abstract: The aim of this work was to provide a comprehensive insight concerning coated films which might be used for first mirrors in ITER. The influence of the mirror crystallite size has been addressed as well as the coating techniques to provide nanocrystalline films. Tests of coated mirrors both in laboratories and in tokamaks are reviewed. For the tokamak tests a wide angle camera system has been installed in JET-ILW which is composed of a mirror box with 3 stainless steel mirrors coated with rhodium viewing the torus through a conically shaped aperture. The system delivered the required image quality for plasma monitoring and wall protection. No or insignificant degradation of the optical transmittance has been observed during the experimental campaign in 2014 with about 3000 plasma pulses in different magnetic field configurations

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Contributing Institute(s):

1. Jülich Supercomputing Center (JSC)
2. Plasmaphysik (IEK-4)

Research Program(s):

1. 174 - Plasma-Wall-Interaction (POF3-174) (POF3-174)

Appears in the scientific report 2016

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