Progress in research and development of mirrors for ITER diagnostics

TitleProgress in research and development of mirrors for ITER diagnostics
Publication TypeJournal Article
Year of Publication2009
AuthorsA. Litnovsky, V. Voitsenya, T. Sugie, G. De Temmerman, A.E Costley, A.JH Donne, K.Y Vukolov, I. Orlovskiy, J.N Brooks, J.P Allain, V. Kotov, A. Semerok, P.Y Thro, T. Akiyama, N. Yoshida, T. Tokunaga, K. Kawahata
JournalNuclear Fusion
Volume49
Number7
Pagination8
Date PublishedJul
Type of ArticleArticle
ISBN Number0029-5515
Accession NumberISI:000267942000014
KeywordsEROSION, EXPOSURE, METAL MIRRORS, SYSTEMS, TEXTOR, TOKAMAK, WINDOW
Abstract

Metallic mirrors will be used as plasma-viewing elements in all optical and laser diagnostic systems in ITER. In the harsh environment of ITER, the performance of mirrors will decrease mainly because of the erosion of their surfaces and deposition of impurities. The deterioration of the optical properties of diagnostic mirrors will directly affect the entire performance of the respective ITER diagnostics, possibly leading to their shutdown. Therefore, R&D on mirrors is of crucial importance for ITER diagnostics. There is a coordinated worldwide R&D programme supervised by the Specialists Working Group on first mirrors of the International Tokamak Physics Activity, Topical Group on Diagnostics. This paper provides an overview of new results in the field of first mirrors, covering the manufacturing of ITER mirror prototypes, investigations of mitigation of deposition and mirror cleaning and the predictive modelling of the mirror performance in ITER. The current status of research on beryllium deposition-a new critical area of mirror research-is given along with an outlook for future activities.

URL<Go to ISI>://000267942000014
Division

Fusion Physics

PID

955731b264c84fb98d0e1ec12f9248c0

Alternate TitleNucl. Fusion

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