Apparatus for monitoring the neutron flux of a nuclear reactor

Details Apparatus for monitoring the neutron flux of a nuclear reactor Apparatus for monitoring the neutron flux of a nuclear reactor

1992-07-17

1993-09-28

Walsh, Donald P.

Induced nuclear reactions: processes, systems, and elements

Testing, sensing, measuring, or detecting a fission reactor...

Flux monitoring

376255, G21C 1700

Patent

active

052492079

ABSTRACT:
Apparatus for monitoring the neutron flux of a nuclear reactor in biological protection concrete (6) surrounding the vessel (4) containing the reactor core (2) and having, in vertical shafts (8 to 22) located in the concrete in the vicinity of said vessel (4), a certain number of neutron detecting devices, characterized in that each shaft is provided with a central, aluminium housing tube (24) and several peripheral, aluminium tubes (28), the central tube (24) being reserved for the housing of the boron deposit proportional counter and the peripheral tubes for the housing of the fission chambers, each maintained at a different height by support means connected to the tubes.

REFERENCES:
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patent: 4404164 (1983-09-01), Kopp et al.
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patent: 4634568 (1987-01-01), Wimpee et al.
patent: 4655994 (1987-04-01), Greenberg
I.E.E.E. Transactions on Nuclear Science--A Two-Range System For Ex-Core Neutron Flux Monitoring. Johnson and Meijer; New York, U.S.A.; vol. NS; Feb. 17, 1970; No. 1; pp. 572-580.
A Measurement of the Neutronic Interaction Between Two Cylindrical Moderators By Grosshog Nuclear Science and Eng., 42, No. 1 pp. (16-22) 1970.

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