Induced nuclear reactions: processes – systems – and elements – Reactor protection or damage prevention – Shield or barrier between radiation or heat source and...
Patent
1985-04-15
1987-03-17
Brown, David H.
Induced nuclear reactions: processes, systems, and elements
Reactor protection or damage prevention
Shield or barrier between radiation or heat source and...
376287, 376339, 2505181, G21C 1100, G21F 302
Patent
active
046506438
ABSTRACT:
A neutron streaming shield comprising a plurality of wire mesh baskets, each basket located between two adjacent vessel nozzles, the total area of the nozzles and baskets being sufficient to intercept any streaming neutrons. The baskets are substantially filled with a multiplicity of randomly packed lumps of a neutron attenuating material, preferably a borated-hydrogenated-argillaceous media. Since the basket is somewhat flexible, it can be inserted in the annulus above the nozzles and then filled with the lumped material, forming a plurality of barriers to compliment the attenuating affect of the nozzles, such that any streaming neutrons will be stopped either by the nozzles or the lumped material in the baskets.
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Permali's Shield Collar, Advertisement, Nov. 82.
Type 277 Heat Resistant Shielding, Reactor Experiments Inc., Nov. 1982.
Brown David H.
Combustion Engineering Inc.
Mulholland John H.
Wasil Dan
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