Induced nuclear reactions: processes – systems – and elements – Testing – sensing – measuring – or detecting a fission reactor... – Temperature or pressure measurement
Patent
1983-07-05
1987-01-06
Cangialosi, Salvatore
Induced nuclear reactions: processes, systems, and elements
Testing, sensing, measuring, or detecting a fission reactor...
Temperature or pressure measurement
376259, G21C 1700
Patent
active
046345701
ABSTRACT:
This device is intended to measure the thermal power released locally in an area of the core of a nuclear reactor and comprises a conduit in the core of the reactor from the outside which contains a body which absorbs gamma radiations located at the measuring area and associated with a measuring thermocouple. A first junction of the thermocouple is placed so that it is brought to a temperature essentially representative of that of the reactor coolant and slightly affected by the gamma flux, and a second junction is placed so that it is brought to a temperature representative of that of the body which absorbs the radiations. The device comprises a supplementary thermocouple which has a first junction located near that of the measuring thermocouple and a second junction brought to a reference temperature. The output signals of the two thermocouples are applied to means which permit an automatic correction of the indications supplied by the measuring thermocouple as a function of the variations of the output signal of the supplementary thermocouple.
REFERENCES:
patent: 4075036 (1978-02-01), Lysikov et al.
patent: 4224461 (1980-09-01), Snyder, Jr. et al.
patent: 4313792 (1982-02-01), Smith
patent: 4406011 (1983-09-01), Burns
patent: 4440717 (1984-04-01), Bevilacqua et al.
Guillery Patrick
Jacquot Jean-Paul
Cangialosi Salvatore
Scandpower, Inc.
Schellin Eric P.
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