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Published on: February 12, 2013
Concept development for the ITER equatorial port visible∕infrared wide angle viewing system
R Reichle1, B Beaumont, D Boilson
1ITER Organization, Route de Vinon-sur-Verdon, 13115 St Paul-lez-Durance, France. Roger.Reichle@ITER.org
Abstract:
The ITER equatorial port visible∕infrared wide angle viewing system concept is developed from the measurement requirements. The proposed solution situates 4 viewing systems in the equatorial ports 3, 9, 12, and 17 with 4 views each (looking at the upper target, the inner divertor, and tangentially left and right). This gives sufficient coverage. The spatial resolution of the divertor system is 2 times higher than the other views. For compensation of vacuum-vessel movements, an optical hinge concept is proposed. Compactness and low neutron streaming is achieved by orienting port plug doglegs horizontally. Calibration methods, risks, and R&D topics are outlined.
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