Gamma ray thermometer for boiling water reactor

Patent · Tue Jan 10 00:00:00 EST 1984

OSTI ID:6695509

Rolstad, E; Smith, R D

The elongated monolithic radiation absorbing body of a gamma ray sensor has its entire external surface exposed to coolant for establishing a uniform heat sink temperature throughout. Cold junction regions are formed in portions of the elongated body of reduced cross-sectional area sufficient to produce measurable signal levels from a differential temperature thermocouple. A removable low melting filler in the reduced cross-sectional portions of the body enable accurate electrical calibration of the sensor.

• Assignee: Scandpower, Inc.
• Patent Number(s): US 4425297
• Application Number: TRN: 84-017339
• OSTI ID: 6695509
• Resource Relation: Patent File Date: Filed date 23 Jun 1981; Other Information: PAT-APPL-276526
• Country of Publication: United States
• Language: English

Related Subjects

21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
BWR TYPE REACTORS
FUEL ASSEMBLIES
TEMPERATURE MEASUREMENT
POWER GENERATION
MEASURING METHODS
THERMOMETERS
DESIGN
GAMMA RADIATION
ABSORPTION HEAT
CALIBRATION
CHEMICAL COMPOSITION
FILLERS
FINS
HEAT FLOW
REACTOR COOLING SYSTEMS
STAINLESS STEEL-316
THERMOCOUPLES
ZIRCALOY
ALLOYS
CHROMIUM ALLOYS
CHROMIUM STEELS
CHROMIUM-NICKEL STEELS
COOLING SYSTEMS
CORROSION RESISTANT ALLOYS
ELECTROMAGNETIC RADIATION
ENERGY
ENERGY SYSTEMS
ENTHALPY
HEAT
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
IONIZING RADIATIONS
IRON ALLOYS
IRON BASE ALLOYS
MATERIALS
MEASURING INSTRUMENTS
MOLYBDENUM ALLOYS
NICKEL ALLOYS
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RADIATIONS
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REACTORS
STAINLESS STEELS
STEELS
THERMODYNAMIC PROPERTIES
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ZIRCONIUM ALLOYS
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Nonbreeding
Light-Water Moderated
Boiling Water Cooled