Gamma ray thermometer for boiling water reactor
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United States of America Patent
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-
Jan 10, 1984
Grant Date -
N/A
app pub date -
Jun 23, 1981
filing date -
Jun 23, 1981
priority date (Note) -
Expired
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Abstract
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.
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