Theoretical characterization of a dual-purpose gamma thermometer for local power-generation measurement in an LMFBR
A preliminary analytical and computational study was performed to investigate the potential of a modified gamma thermometer (GT) as both a local power level monitor and a sodium flow blockage monitor for a Liquid Metal Fast Breeder Reactor. This study consisted of two fundamental parts: a radiation field characterization and a thermal-hydraulic analysis. The radiation transport analysis was performed to determine the volumetric heat source within the GT resulting from gamma and neutron heating. Both fission-product decay gammas and neutron-induced gammas were treated in the analysis, as well as the direct neutron heating effect. Further, a sensitivity analysis was performed to characterize the origin of the neutron-induced gammas (by material) contributing to the volumetric heat source.
- Research Organization:
- Oak Ridge National Lab., TN (USA)
- DOE Contract Number:
- W-7405-ENG-26
- OSTI ID:
- 5335652
- Report Number(s):
- ORNL/TM-8233; ON: DE82013371
- Country of Publication:
- United States
- Language:
- English
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210500* -- Power Reactors
Breeding
BREEDER REACTORS
DETECTION
EPITHERMAL REACTORS
FAST REACTORS
FBR TYPE REACTORS
FUEL ELEMENTS
FUEL PINS
GAMMA DETECTION
IN CORE INSTRUMENTS
LIQUID METAL COOLED REACTORS
LMFBR TYPE REACTORS
MEASURING INSTRUMENTS
POWER DISTRIBUTION
RADIATION DETECTION
REACTOR COMPONENTS
REACTOR CORES
REACTOR INSTRUMENTATION
REACTORS
SPECIFICATIONS
THERMOCOUPLES