Induced nuclear reactions: processes – systems – and elements – With control of reactor – Spectral shift
Patent
1983-12-09
1987-12-29
Behrend, Harvey E.
Induced nuclear reactions: processes, systems, and elements
With control of reactor
Spectral shift
376236, 376327, G21C 726
Patent
active
047160071
ABSTRACT:
A mechanical spectral shift reactor comprises apparatus for inserting and withdrawing water displacer elements having differing neutron absorbing capabilities for selectively changing the water-moderator volume in the core thereby changing the reactivity of the core. The displacer elements may comprise substantially hollow cylindrical low neutron absorbing rods and substantially hollow cylindrical thick walled stainless rods. Since the stainless steel displacer rods have greater neutron absorbing capability, they can effect greater reactivity change per rod. However, by arranging fewer stainless steel displacer rods in a cluster, the reactivity worth of the stainless steel displacer rod cluster can be less than a low neutron absorbing displacer rod cluster.
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Nuclear Engineering International, Aug. 1973, pp. 646-649.
Carlson William R.
Piplica Eugene J.
Behrend Harvey E.
Palmer W. D.
Westinghouse Electric Corp.
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