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Neutron Irradiation Test of Optical Components for Fusion Reactor

Ishitsuka, E
Japan Atomic Energy Research Institute, Oarai Research Establishment,

Sagawa, H
Japan Atomic Energy Research Institute, Oarai Research Establishment,

Nagashima, A
Japan Atomic Energy Research Institute, Naka Research Establishment,

Sugie, T
Japan Atomic Energy Research Institute, Naka Research Establishment,

Nishitani, T
Japan Atomic Energy Research Institute, Naka Research Establishment,

Yamamoto, S
ITER Garching JWS, Max-Planck-Institut fuer Plasmaphysik Boltzmannstr.2,

Kawamura, H
Japan Atomic Energy Research Institute, Oarai Research Establishment,

Pages: 10    Published: Jan 2000

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Source: STP1366-EB

Abstract

The neutron irradiation effects on the window and mirror materials proposed as optical elements for plasma diagnostic components were studied. Specimens were sapphire and KU-quartz as the window material, molybdenum corner cubic reflector, gold-coated mirror and aluminum corner cubic reflector. These materials were irradiated by the Japan Materials Testing Reactor, and transmission and refraction spectrum, change of color and surface roughness were observed.

Keywords:
fusion reactor material, neutron irradiation, optical element, window, transmission, mirror, reflectivity, sapphire, KU-quartz, molybdenum, gold-coated mirror, aluminum, PIE, in-situ measurement

Paper ID: STP12462S
Committee/Subcommittee: E10.08
DOI: 10.1520/STP12462S
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