Low neutron fluence nuclear reactor internals

Details Low neutron fluence nuclear reactor internals Low neutron fluence nuclear reactor internals

1988-10-14

1990-07-10

Behrend, Harvey E.

Induced nuclear reactions: processes, systems, and elements

Moderator or reflector component structure for a fission...

376400, 376904, 376288, 376287, G21C 1510, G21C 1106

Patent

active

049411594

ABSTRACT:
A new design for nuclear reactor internals resulting in reduced fast neutron leakage to the reactor vessel. The first step of the two-stage process reflects high energy or fast neutrons back into the core, by placement of a reflector made of tungsten, stainless steel, or zirconium oxide in the baffle barrel region. The second stage involves reducing the energy of any fast neutrons that may pass through the reflector by the use of a neutron energy reducer, composed of an hydrogenous material such as titanium hydride, surrounding the core barrel in the areas of high neutron flux. In addition to protecting the reactor vessel wall and increasing the operating life of a nuclear reactor, the neutron economy in the core, and hence the operating efficiency of a nuclear power plant, are significantly increased.

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