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6. Main challenges for ITER optical diagnostics

Author

Vukolov, K. Yu., primary, Orlovskiy, I. I., additional, Alekseev, A. G., additional, Borisov, A. A., additional, Andreenko, E. N., additional, Kukushkin, A. B., additional, Lisitsa, V. S., additional, and Neverov, V. S., additional

Published
2014
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8. Optical Dumps for H-alpha and visible spectroscopy in ITER.

Author

Andreenko, E. N., Alekseev, A. G., Gorshkov, A. V., and Orlovskiy, I. I.

Subjects
*OPTICAL spectroscopy, *BERYLLIUM, *FUSION reactor divertors, *ATTENUATION of light, *REFLECTANCE, *PLASMA gases
Abstract

High-reflective Beryllium cover of ITER first wall (R 30-60%) causes remarkable increase of divertor stray Light component (DSL). Optical dumps are well-known solution for DSL attenuation. In this work few types of optical dumps have been examined both by modeling and experimental studies. Taking into account the limitations, induced by ITER first wall design, OD optimized design has been proposed which could decrease divertor stray light component by 10..100 times depending on incidence angle of light. [ABSTRACT FROM AUTHOR]

Published
2014
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