Fission-chamber-compensated self-powered detector for in-core fl

Induced nuclear reactions: processes – systems – and elements – Testing – sensing – measuring – or detecting a fission reactor... – Flux monitoring

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376259, G21C 1700

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active

045826730

ABSTRACT:
A rhodium self-powered detector, a fission chamber, and appropriate electronic circuitry for combining the output of the self-powered detector and the fission chamber are disclosed in combination wherein the combined output of the self-powered detector and the fission chamber is always proportional to the local reactor power level or neutron flux density in a nuclear reactor.

REFERENCES:
patent: 2874304 (1959-02-01), Lichtenstein
patent: 2982473 (1961-05-01), Goertzel
patent: 3043954 (1962-07-01), Boyd et la.
patent: 3565760 (1971-02-01), Parkos et al.
patent: 3760183 (1973-09-01), Neissel
patent: 4103166 (1978-07-01), Niessel et al.
patent: 4493811 (1985-01-01), Seki et al.
IEEE Trans. on Nuc. Sci. (2/76), NS-23, No. 1, pp. 311-316, Banda et al., "Dynamic Compensation of Rhodium Self Powered Neutron Detectors".
"A PENA-Detector Flux Measuring System with a Fast Response", Johnstone (3/71), Research Reactors Div. UKAEA Research Group, Atomic Energy Research Establishment.

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