Speaker
Fabien Sanchez
(Universität Basel)
Description
Metallic first mirrors will be close to the fusion plasma in ITER and might suffer from erosion and deposition coming from the first walls of the fusion reactor. Consequently, the optical diagnostics system can be compromised. The most promising in-situ technique to remove these deposits while restoring the mirrors optical properties is plasma sputtering. This contribution discusses the evolution of the optical properties of rhodium-coated mirrors upon cycles of depositing Al2O3 followed by its removal using argon radiofrequency plasma. Within an acceptable margin, the optical properties of the mirrors were shown to be conserved up to 100 cycles.
Author
Fabien Sanchez
(Universität Basel)
Co-authors
Dr
Laurent Marot
(University of Basel)
Ernst Meyer
(University of Basel)
Rodrigo Antunes
(University of Basel)
Paul Hiret
(Universitat Basel)
Juan José Piqueras Meseguer
(Fusion for Energy)
Kunal Soni
(University of Basel)
Roland Steiner
(University of Basel)
Dr
Frederic Le Guern
(Fusion for Energy(F4E))
