Upper wide-angle viewing system for ITER

C. J. Lasnier; A. G. McLean; A. Gattuso; R. O'Neill; M. Smiley; J. Vasquez; R. Feder; M. Smith; B. Stratton; D. Johnson; A. L. Verlaan; J. A.C. Heijmans

doi:10.1063/1.4960489

Upper wide-angle viewing system for ITER

C. J. Lasnier, A. G. McLean, A. Gattuso, R. O'Neill, M. Smiley, J. Vasquez, R. Feder, M. Smith, B. Stratton, D. Johnson, A. L. Verlaan, J. A.C. Heijmans

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5 Scopus citations

Abstract

The Upper Wide Angle Viewing System (UWAVS) will be installed on five upper ports of ITER. This paper shows major requirements, gives an overview of the preliminary design with reasons for some design choices, examines self-emitted IR light from UWAVS optics and its effect on accuracy, and shows calculations of signal-to-noise ratios for the two-color temperature output as a function of integration time and divertor temperature. Accurate temperature output requires correction for vacuum window absorption vs. wavelength and for self-emitted IR, which requires good measurement of the temperature of the optical components. The anticipated signal-to-noise ratio using presently available IR cameras is adequate for the required 500 Hz frame rate.

Original language	English (US)
Article number	11D426
Journal	Review of Scientific Instruments
Volume	87
Issue number	11
DOIs	https://doi.org/10.1063/1.4960489
State	Published - Nov 1 2016

All Science Journal Classification (ASJC) codes

Instrumentation

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title = "Upper wide-angle viewing system for ITER",

abstract = "The Upper Wide Angle Viewing System (UWAVS) will be installed on five upper ports of ITER. This paper shows major requirements, gives an overview of the preliminary design with reasons for some design choices, examines self-emitted IR light from UWAVS optics and its effect on accuracy, and shows calculations of signal-to-noise ratios for the two-color temperature output as a function of integration time and divertor temperature. Accurate temperature output requires correction for vacuum window absorption vs. wavelength and for self-emitted IR, which requires good measurement of the temperature of the optical components. The anticipated signal-to-noise ratio using presently available IR cameras is adequate for the required 500 Hz frame rate.",

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doi = "10.1063/1.4960489",

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AU - Lasnier, C. J.

AU - McLean, A. G.

AU - Gattuso, A.

AU - O'Neill, R.

AU - Smiley, M.

AU - Vasquez, J.

AU - Feder, R.

AU - Smith, M.

AU - Stratton, B.

AU - Johnson, D.

AU - Verlaan, A. L.

AU - Heijmans, J. A.C.

PY - 2016/11/1

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N2 - The Upper Wide Angle Viewing System (UWAVS) will be installed on five upper ports of ITER. This paper shows major requirements, gives an overview of the preliminary design with reasons for some design choices, examines self-emitted IR light from UWAVS optics and its effect on accuracy, and shows calculations of signal-to-noise ratios for the two-color temperature output as a function of integration time and divertor temperature. Accurate temperature output requires correction for vacuum window absorption vs. wavelength and for self-emitted IR, which requires good measurement of the temperature of the optical components. The anticipated signal-to-noise ratio using presently available IR cameras is adequate for the required 500 Hz frame rate.

AB - The Upper Wide Angle Viewing System (UWAVS) will be installed on five upper ports of ITER. This paper shows major requirements, gives an overview of the preliminary design with reasons for some design choices, examines self-emitted IR light from UWAVS optics and its effect on accuracy, and shows calculations of signal-to-noise ratios for the two-color temperature output as a function of integration time and divertor temperature. Accurate temperature output requires correction for vacuum window absorption vs. wavelength and for self-emitted IR, which requires good measurement of the temperature of the optical components. The anticipated signal-to-noise ratio using presently available IR cameras is adequate for the required 500 Hz frame rate.

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Upper wide-angle viewing system for ITER

Abstract

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