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Options for Implementation of IR Thermography Diagnostics in a Tokamak with Reactor Technologies TRT
- Authors: Razdobarin A.G.1,2, Shubin Y.R.1, Bogachev D.L.2, Elets D.I.1,2, Medvedev O.S.1,2, Mukhin E.E.1, Snigirev L.A.1
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Affiliations:
- Ioffe Institute, Russian Academy of Sciences
- Spectral-Tech
- Issue: Vol 50, No 4 (2024)
- Pages: 509-520
- Section: TOKAMAKS
- URL: https://rjonco.com/0367-2921/article/view/668795
- DOI: https://doi.org/10.31857/S0367292124040113
- EDN: https://elibrary.ru/QCSKCO
- ID: 668795
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Abstract
AbstractOptions for implementing the IR thermography diagnostic system in a TRT facility are considered. Two variants of the optical scheme for measuring the temperature of the first wall and divertor targets are proposed: a wide-angle system combined with two divertor channels and a four-channel viewing system. The optical resolution of both systems and the levels of the collected signal are numerically simulated. On the basis of the calculations performed, conclusions are drawn about the compliance of the systems with the requirements for measuring the temperature of TRT plasma-facing elements. The sources of the temperature measurement error are considered, and the error caused by the reflection of radiation from structural plasma-facing elements by the surface under study is estimated. Calibration issues for IR thermography diagnostics are also discussed.
Keywords
About the authors
A. G. Razdobarin
Ioffe Institute, Russian Academy of Sciences; Spectral-Tech
Author for correspondence.
Email: Aleksey.Razdobarin@mail.ioffe.ru
Russian Federation, St. Petersburg, 194021; St. Petersburg, 194223
Y. R. Shubin
Ioffe Institute, Russian Academy of Sciences
Email: Aleksey.Razdobarin@mail.ioffe.ru
Russian Federation, St. Petersburg, 194021
D. L. Bogachev
Spectral-Tech
Email: Aleksey.Razdobarin@mail.ioffe.ru
Russian Federation, St. Petersburg, 194223
D. I. Elets
Ioffe Institute, Russian Academy of Sciences; Spectral-Tech
Email: Aleksey.Razdobarin@mail.ioffe.ru
Russian Federation, St. Petersburg, 194021; St. Petersburg, 194223
O. S. Medvedev
Ioffe Institute, Russian Academy of Sciences; Spectral-Tech
Email: Aleksey.Razdobarin@mail.ioffe.ru
Russian Federation, St. Petersburg, 194021; St. Petersburg, 194223
E. E. Mukhin
Ioffe Institute, Russian Academy of Sciences
Email: Aleksey.Razdobarin@mail.ioffe.ru
Russian Federation, St. Petersburg, 194021
L. A. Snigirev
Ioffe Institute, Russian Academy of Sciences
Email: Aleksey.Razdobarin@mail.ioffe.ru
Russian Federation, St. Petersburg, 194021
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