The Concept of an Erosion Monitor for In-Vessel ITER Components with the Use of a Pulsed Laser
- Authors: Bondarenko A.V.1, Vysotsky D.V.1, Tugarinov S.N.1
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Affiliations:
- Troitsk Institute for Innovation and Fusion Research (TRINITI)
- Issue: Vol 82, No 7 (2019)
- Pages: 977-980
- Section: Article
- URL: https://journal-vniispk.ru/1063-7788/article/view/195599
- DOI: https://doi.org/10.1134/S1063778819070044
- ID: 195599
Cite item
Abstract
The erosion monitor is the ITER diagnostic system designed to control the erosion and deposition of materials on the plasma-facing components of the vacuum vessel under the influence of particle flows and radiation from the plasma. The required accuracy and range of measurements can be achieved using the two-frequency speckle interferometry method. However, because of vibration of the installation, the images should be taken in such a short time that is not provided by existing CMOS cameras. In this paper, it is proposed to use an interferometer based on a pulsed solid-state laser with a tunable radiation wavelength, and methods for recording interferograms under vibration conditions are considered. The required laser parameters are estimated; the expected results are analyzed.
Keywords
About the authors
A. V. Bondarenko
Troitsk Institute for Innovation and Fusion Research (TRINITI)
Author for correspondence.
Email: A.Bondarenko@iterrf.ru
Russian Federation, Troitsk, Moscow, 142190
D. V. Vysotsky
Troitsk Institute for Innovation and Fusion Research (TRINITI)
Email: A.Bondarenko@iterrf.ru
Russian Federation, Troitsk, Moscow, 142190
S. N. Tugarinov
Troitsk Institute for Innovation and Fusion Research (TRINITI)
Email: A.Bondarenko@iterrf.ru
Russian Federation, Troitsk, Moscow, 142190
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