Progress in research and development of mirrors for ITER diagnostics

A. Litnovsky, V. Voitsenya, T. Sugie, G. De Temmerman, A. E. Costley, A. J.H. Donné, K. Yu Vukolov, I. Orlovskiy, J. N. Brooks, J. P. Allain, V. Kotov, A. Semerok, P. Y. Thro, T. Akiyama, N. Yoshida, T. Tokunaga, K. Kawahata

Research output: Contribution to journalArticle

53 Citations (Scopus)

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.

Original languageEnglish (US)
Article number075014
JournalNuclear Fusion
Volume49
Issue number7
DOIs
StatePublished - Sep 21 2009

Fingerprint

research and development
mirrors
shutdowns
beryllium
deterioration
cleaning
erosion
coverings
manufacturing
prototypes
optical properties
impurities
physics

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Condensed Matter Physics

Cite this

Litnovsky, A., Voitsenya, V., Sugie, T., De Temmerman, G., Costley, A. E., Donné, A. J. H., ... Kawahata, K. (2009). Progress in research and development of mirrors for ITER diagnostics. Nuclear Fusion, 49(7), [075014]. https://doi.org/10.1088/0029-5515/49/7/075014
Litnovsky, A. ; Voitsenya, V. ; Sugie, T. ; De Temmerman, G. ; Costley, A. E. ; Donné, A. J.H. ; Vukolov, K. Yu ; Orlovskiy, I. ; Brooks, J. N. ; Allain, J. P. ; Kotov, V. ; Semerok, A. ; Thro, P. Y. ; Akiyama, T. ; Yoshida, N. ; Tokunaga, T. ; Kawahata, K. / Progress in research and development of mirrors for ITER diagnostics. In: Nuclear Fusion. 2009 ; Vol. 49, No. 7.
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Litnovsky, A, Voitsenya, V, Sugie, T, De Temmerman, G, Costley, AE, Donné, AJH, Vukolov, KY, Orlovskiy, I, Brooks, JN, Allain, JP, Kotov, V, Semerok, A, Thro, PY, Akiyama, T, Yoshida, N, Tokunaga, T & Kawahata, K 2009, 'Progress in research and development of mirrors for ITER diagnostics', Nuclear Fusion, vol. 49, no. 7, 075014. https://doi.org/10.1088/0029-5515/49/7/075014

Progress in research and development of mirrors for ITER diagnostics. / Litnovsky, A.; Voitsenya, V.; Sugie, T.; De Temmerman, G.; Costley, A. E.; Donné, A. J.H.; Vukolov, K. Yu; Orlovskiy, I.; Brooks, J. N.; Allain, J. P.; Kotov, V.; Semerok, A.; Thro, P. Y.; Akiyama, T.; Yoshida, N.; Tokunaga, T.; Kawahata, K.

In: Nuclear Fusion, Vol. 49, No. 7, 075014, 21.09.2009.

Research output: Contribution to journalArticle

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AU - Litnovsky, A.

AU - Voitsenya, V.

AU - Sugie, T.

AU - De Temmerman, G.

AU - Costley, A. E.

AU - Donné, A. J.H.

AU - Vukolov, K. Yu

AU - Orlovskiy, I.

AU - Brooks, J. N.

AU - Allain, J. P.

AU - Kotov, V.

AU - Semerok, A.

AU - Thro, P. Y.

AU - Akiyama, T.

AU - Yoshida, N.

AU - Tokunaga, T.

AU - Kawahata, K.

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Y1 - 2009/9/21

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AB - 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.

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Litnovsky A, Voitsenya V, Sugie T, De Temmerman G, Costley AE, Donné AJH et al. Progress in research and development of mirrors for ITER diagnostics. Nuclear Fusion. 2009 Sep 21;49(7). 075014. https://doi.org/10.1088/0029-5515/49/7/075014