Induced nuclear reactions: processes – systems – and elements – Testing – sensing – measuring – or detecting a fission reactor... – Flux monitoring
Patent
1987-08-10
1989-04-04
Behrend, Harvey E.
Induced nuclear reactions: processes, systems, and elements
Testing, sensing, measuring, or detecting a fission reactor...
Flux monitoring
376447, 376258, 376443, G21C 1710
Patent
active
048184713
ABSTRACT:
A Local Power Range Monitor (LPRM) string is employed between BWR fuel assemblies arranged in side-by-side spaced positions. The string has a hollow tube and neutron detectors located therein at spaced axial locations and being adapted to provide local power monitoring information. The hollow string tube is adapted to receive a neutron flux sensitive probe for calibrating the detectors. Each fuel assembly has an outer hollow tubular channel surrounding fuel rods and spacers disposed within and axially along the channel and about the fuel rods. The spacers are composed of a material incapable of producing a localized change in neutron flux. Elements in the form of strips of a neutron absorber material are attached to the exterior of the channel of each fuel assembly at a respective corner thereon and located axially at different known positions therealong and adjacent to the hollow string tube. The material composing the strips is capable of producing a localized change in neutron flux such that, upon passage of the probe through the hollow string tube and past the strips, the probe will sense the neutron flux change being produced by each of the strips and thereby the position of the probe can be tracked as it is moved through the string tube.
REFERENCES:
patent: 2994657 (1961-08-01), Petrick
patent: 3349004 (1967-10-01), Lass et al.
patent: 3663366 (1972-05-01), Sauar
patent: 3802995 (1974-04-01), Fritz et al.
patent: 3846771 (1974-11-01), Young et al.
patent: 3852661 (1974-12-01), Szabo et al.
patent: 3890607 (1975-06-01), Pelenc et al.
patent: 3906469 (1975-09-01), Kronk
patent: 4045283 (1977-08-01), Noyes et al.
patent: 4067772 (1978-01-01), Kim
patent: 4142934 (1979-03-01), Wild et al.
patent: 4155807 (1979-05-01), Schreiber et al.
patent: 4246048 (1981-01-01), Kawai et al.
patent: 4268586 (1981-05-01), Hanneman et al.
patent: 4295935 (1981-10-01), Anthony
patent: 4297170 (1981-10-01), Leclercq
patent: 4318776 (1982-03-01), Proll et al.
patent: 4418036 (1983-11-01), Gjertsen
patent: 4448745 (1984-05-01), Anthony
patent: 4478786 (1984-10-01), Andersson et al.
patent: 4560532 (1985-12-01), Barry et al.
patent: 4585615 (1986-04-01), De Mario
patent: 4591479 (1986-05-01), Weitzberg
patent: 4624829 (1986-11-01), Jackson
patent: 4626405 (1986-12-01), Field et al.
patent: 4636352 (1987-01-01), Boyle
patent: 4645643 (1987-02-01), Leclercq
patent: 4649021 (1987-03-01), Taleyarkhan
patent: 4698204 (1987-10-01), Taleyarkhan
Taleyarkhan Rusi P.
Thomson Ronald M.
Behrend Harvey E.
Westinghouse Electric Corp.
LandOfFree
BWR fuel assembly channel with localized neutron absorber strips does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with BWR fuel assembly channel with localized neutron absorber strips, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and BWR fuel assembly channel with localized neutron absorber strips will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-178691