Induced nuclear reactions: processes – systems – and elements – Testing – sensing – measuring – or detecting a fission reactor... – Flux monitoring
Patent
1991-11-27
1992-08-25
Hunt, Brooks H.
Induced nuclear reactions: processes, systems, and elements
Testing, sensing, measuring, or detecting a fission reactor...
Flux monitoring
376255, 376154, 25039001, 2503901, G21C 17108
Patent
active
051417090
ABSTRACT:
An excore neutron flux power level detector assembly includes a neutron flux detector subassembly and a moderator subassembly having the form of a dual-wall canister of annular cross-section for receiving the detector subassembly in coaxial and telescoping relationship therein and having moderator material, preferably high density polyethylene, in the annular space between the dual-walls thereof for converting epithermal neutrons in leakage flux from a nuclear reactor to thermal neutrons having a power level detectable by the flux detector subassembly. Insulating spacer elements affixed concentrically about and axially displaced along the surface of the cylindrical housing of the detector provide lateral, structural support and spacing therebetween and electrical insulation of the detector subassembly from the moderator subassembly.
REFERENCES:
patent: 2928965 (1960-03-01), Bayard et al.
patent: 3067329 (1962-12-01), Linden
patent: 3809940 (1974-05-01), Sekella
patent: 3956654 (1976-05-01), Gleason
patent: 4504437 (1985-03-01), Underwood et al.
patent: 4556793 (1985-12-01), Allen et al.
Federico Panfilo A.
Gaussa, Jr. Louis W.
Carroll Chrisman D.
Hunt Brooks H.
Panian M. G.
Westinghouse Electric Corp.
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