Induced nuclear reactions: processes – systems – and elements – Testing – sensing – measuring – or detecting a fission reactor... – Flux monitoring
Patent
1983-12-30
1987-04-07
Cangialosi, Salvatore
Induced nuclear reactions: processes, systems, and elements
Testing, sensing, measuring, or detecting a fission reactor...
Flux monitoring
376255, 376259, G21C 1700
Patent
active
046559949
ABSTRACT:
A method of determining the operability of a source range detector located adjacent a nuclear reactor in which the source range detector generates a count corresponding to the neutrons emitted by the reactor when the reactor is operating within the source range and a predetermined voltage is applied across the electrodes of the detector, the detector being subject to destruction when the reactor power level is above the source range and the predetermined voltage is applied across its electrodes. The method includes the steps of: (a) operating the reactor at a power level above the source range; (b) applying a voltage across the electrodes of the detector, the voltage having a magnitude below that necessary to generate a neutron count from the detector; (c) gradually increasing the magnitude of the voltage across the electrodes of the detector until the detector just begins to generate a neutron count; (d) reducing the voltage across the electrodes of the detector; and (e) replacing the detector if a neutron count is not generated in step (c) at a voltage having a magnitude less than the predetermined voltage.
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Abeles Daniel C.
Cangialosi Salvatore
Westinghouse Electric Corp.
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