Induced nuclear reactions: processes – systems – and elements – Testing – sensing – measuring – or detecting a fission reactor... – Flux monitoring
Patent
1989-08-25
1991-10-15
Wasil, Daniel D.
Induced nuclear reactions: processes, systems, and elements
Testing, sensing, measuring, or detecting a fission reactor...
Flux monitoring
G21C 1710
Patent
active
050572709
ABSTRACT:
The instrumentation arrangement comprises a horizontal plate (31) arranged below the vessel (1) closure head (3) through which instrumentation columns (27) pass, carrying measurement conduits internally (26). The distribution plate (31) carries vertical guide tubes (38), into each of which a measurement conduit (26) is introduced. Each of the vertical guide tubes (38) is engaged into a tubular brace (17) of the upper internal equipment of the reactor, to ensure the guidance of the measurement conduit (26), from the instrumentation column (27) to an instrumentation guide tube (30) of a reactor core assembly (5). The distribution plate (31) is fastened in a removable manner to the plate (18) supporting the upper internal equipment of the reactor and may be raised relative to the upper internal equipment for withdrawing, as a unit, the measurement conduits (26) from the instrumentation tubes of the core assemblies, when the closure head (3) is removed.
REFERENCES:
patent: 3849257 (1974-11-01), Bevilacqua
patent: 4696786 (1987-09-01), Frizot et al.
patent: 4765947 (1988-08-01), Babin et al.
patent: 4842813 (1989-06-01), Desfontaines et al.
patent: 4983351 (1991-01-01), Tower et al.
Framatome
Wasil Daniel D.
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