TY  - JOUR
AU  - Marot, L.
AU  - Arnoux, G.
AU  - Huber, A.
AU  - Huber, V.
AU  - Mertens, Ph.
AU  - Sergienko, G.
AU  - Meyer, E.
AU  - Contributors, J. E. T.
TI  - Optical Coatings as Mirrors for Optical Diagnostics
JO  - Journal of coating science and technology
VL  - 2
IS  - 3
SN  - 2369-3355
CY  - Mississauga
PB  - Lifescience Global
M1  - FZJ-2016-00192
SP  - 72 - 78
PY  - 2016
AB  - 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
LB  - PUB:(DE-HGF)16
DO  - DOI:10.6000/2369-3355.2015.02.03.1
UR  - https://juser.fz-juelich.de/record/280415
ER  -