A Laser Metrology/Viewing System for ITER In-Vessel Inspection
- Oak Ridge National Lab., TN (United States)
- Boeing Rocketdyne Div., Canoga Park, CA (United States)
- Coleman Research Corp., Springfield, VA (United States)
This paper identifies the requirements for a remotely operated precision laser ranging system for the International Thermonuclear Experimental Reactor. The inspection system is used for metrology and viewing, and must be capable of achieving submillimeter accuracy and operation in a reactor vessel that has high gamma radiation, high vacuum, elevated temperature, and magnetic field levels. A coherent, frequency modulated laser radar system is under development to meet these requirements. The metrology/viewing sensor consists of a compact laser-optic module linked through fiberoptics to the laser source and imaging units, located outside the harsh environment. The deployment mechanism is a remotely operated telescopic mast. Gamma irradiation up to 10{sup 7} Gy was conducted on critical sensor components with no significant impact to data transmission, and analysis indicates that critical sensor components can operate in a magnetic field with certain design modifications. Plans for testing key components in a magnetic field are underway.
- 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:
- 629335
- Report Number(s):
- ORNL/CP-94832; CONF-971065-; ON: DE97008902; BR: AT150402C; TRN: 98:009839
- Resource Relation:
- Conference: 17. IEEE/NPSS symposium on fusion engineering, San Diego, CA (United States), 6-10 Oct 1997; Other Information: PBD: [Oct 1997]
- Country of Publication:
- United States
- Language:
- English
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