Nuclear reactors

Details Nuclear reactors Nuclear reactors

1978-05-22

1980-01-29

Behrend, Harvey E.

Compositions

Radioactive compositions

Nuclear reactor fuel

176 71, 176 89, 2523011R, G21C 358

Patent

active

041860500

ABSTRACT:
A nuclear reactor having a large prompt negative temperature coefficient of reactivity. A reactor core assembly of a plurality of fluid-tight fuel elements is located within a water-filled tank. Each fuel element contains a solid homogeneous mixture of 50-79 w/o zirconium hydride, 20-50 w/o uranium and 0.5-1.5 w/o erbium. The uranium is not more than 20 percent enriched, and the ratio of hydrogen atoms to zirconium atoms is between 1.5:1 and 1.7:1. The core has a long lifetime, e.g., at least about 1200 MW days.

REFERENCES:
patent: 3019176 (1962-01-01), McReynolds et al.
patent: 3127325 (1964-03-01), Taylor et al.
patent: 3943210 (1976-03-01), Vetrano

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