Development of components of the optical path for Thomson scattering diagnostics located on tokamak ITER divertor cassettes
Kungurtsev N. A.1, Koval A. N.1, Mukhin E. E.1, Tolstyakov S. Yu.1, Razdobarin A. G.1, Elets D. I.1, Medvedev O. S.1, Bukreev I. M.1, Nikolaenko K. O.1, Kirienko I. D.2, Zhadkovskij A. A.2, Modestov V. I.2, Bogachev D. L.3
1Ioffe Institute, St. Petersburg, Russia
2Peter the Great Saint-Petersburg Polytechnic University, St. Petersburg, Russia
3Spectral-Tech, St. Petersburg, Russia
Email: n.a.kungurtsev@mail.ioffe.ru
The diagnostic components of Thomson scattering (TS) placed on ITER divertor cassettes are exposed to radiation, radiation heating, exposure to a strong magnetic field of 6-9 T, as well as shock effects from the interaction of a permanent magnetic field with eddy currents induced in structures during plasma discharge failures. The article discusses the design features of components that allow them to remain operational in close proximity to thermonuclear plasma, fulfilling specific diagnostic requirements. Keywords: ITER, Thomson scattering, laser radiation, divertor.
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