Coolant condition monitor for nuclear power reactor
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United States of America Patent
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-
Nov 29, 1983
Grant Date -
N/A
app pub date -
May 27, 1981
filing date -
May 27, 1981
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The faster acting junction of a difference junction thermocouple associated with a gamma sensor is located vertically above the other junction to ordinarily monitor local power generation in the fuel core of a nuclear reactor and in response to a reversal in the signal voltage polarity indicate a drop in level of coolant to thereby also function as a coolant monitor. An internal electrical heater enhances the coolant monitoring capability of the sensor, which may also be extended into the dome of the reactor vessel for monitoring conditions therein.
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