Radiation effects on optical components of a laser radar sensor designed for remote metrology in ITER

Conference · Mon Sep 01 00:00:00 EDT 1997

OSTI ID:292844

Menon, M M; Grann, E B ^[1]; Slotwinski, A ^[2]

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1. Oak Ridge National Lab., TN (United States)
2. Coleman Research Corp., Springfield, VA (United States)

A frequency modulated laser radar is being developed for in-vessel metrology and viewing of plasma-facing surfaces. Some optical components of this sensor must withstand intense gamma radiation (3 {times} 10{sup 6} rad/h) during operation. The authors have tested the effect of radiation on a silica core polarization maintaining optical fiber and on TeO{sub 2} crystals at doses up to {approximately} 10{sup 9} rad. Additional tests are planned for evaluating the performance of a complete acousto-optic (AO) scanning device. The progress made in these tests is also described.

• Research Organization: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: USDOE Office of Energy Research, Washington, DC (United States)
• DOE Contract Number: AC05-96OR22464
• OSTI ID: 292844
• Report Number(s): ORNL/CP-94834; CONF-971065-; ON: DE97008903; TRN: 99:000084
• Resource Relation: Conference: 17. IEEE/NPSS symposium on fusion engineering, San Diego, CA (United States), 6-10 Oct 1997; Other Information: PBD: Sep 1997
• Country of Publication: United States
• Language: English

Related Subjects

44 INSTRUMENTATION
INCLUDING NUCLEAR AND PARTICLE DETECTORS
70 PLASMA PHYSICS AND FUSION
OPTICAL SYSTEMS
OPTICAL RADAR
GAMMA RADIATION
OPTICAL FIBERS
TELLURIUM OXIDES
ITER TOKAMAK
RADIATION EFFECTS