Testing of fiber optic based sensors for advanced reactors in the Texas A&M University TRIGA reactor
Journal Article
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· Annals of Nuclear Energy
- Texas A & M Univ., College Station, TX (United States); Texas A&M University
- Texas A & M Univ., College Station, TX (United States)
An Optical Fiber Based Gamma Thermometer has been developed and tested at the Texas A&M University reactor as well as the Ohio State Research Reactor. This sensor technology provides temperature measurement of a thermal mass undergoing gamma heating, from which the gamma flux along the length of the sensor may be calculated. The gamma flux data from an array of OFBGTs could allow the determination of local power density within a nuclear reactor core in three dimensions. The design of the sensor makes use of optical fiber as a truly distributed temperature sensor with a spatial resolution less than 1mm and temperature accuracy of ±1°C. The testing program showed that the system provided the expected temperature data for each location. Overall, this sensor technology shows promise for current Light Water Reactors as well as advanced nuclear reactors by providing an unparalleled level of precision in reactor power measurement.
- Research Organization:
- Idaho National Laboratory (INL), Idaho Falls, ID (United States); Texas A & M Univ., College Station, TX (United States); The Ohio State Univ., Columbus, OH (United States)
- Sponsoring Organization:
- USDOE Office of Nuclear Energy (NE); USDOE Office of Nuclear Energy (NE), Nuclear Energy University Program (NEUP)
- Grant/Contract Number:
- AC07-05ID14517; NE0008810
- OSTI ID:
- 2204484
- Alternate ID(s):
- OSTI ID: 2212824
- Journal Information:
- Annals of Nuclear Energy, Journal Name: Annals of Nuclear Energy Vol. 196; ISSN 0306-4549
- Publisher:
- ElsevierCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Methodology for inferring reactor core power distribution from an optical fiber based gamma thermometer array
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journal | December 2020 |
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