Title
Upper wide-angle viewing system for ITER
Author
Lasnier, C.J.
McLean, A.G.
Gattuso, A.
O'Neill, R.
Smiley, M.
Vasquez, J.
Feder, R.
Smith, M.
Stratton, B.
Johnson, D.
Verlaan, A.L.
Heijmans, J.A.C.
Publication year
2016
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.
Subject
Nano Technology
OPT - Optics OM - Opto-Mechatronics
TS - Technical Sciences
High Tech Systems & Materials
Electronics
Industrial Innovation
To reference this document use:
http://resolver.tudelft.nl/uuid:51a0055e-0488-47b8-b7a9-5eb3ee4ad514
TNO identifier
572339
Publisher
Lawrence Livermore National Laboratory, Livermore, CA, US
ISSN
0034-6748
Source
21st Topical Conference on High-Temperature Plasma Diagnostics, 6-9 June 2016, Madison, WI, USA
Article number
822391 LLNL-CONF-694074
Bibliographical note
Later als artikel verschenen in Review of Scientific Instruments, vol.87, no.11
Document type
conference paper