Method for producing isotopically enriched helium-4 and use of s

Details Method for producing isotopically enriched helium-4 and use of s Method for producing isotopically enriched helium-4 and use of s

1978-07-17

1981-12-08

Sever, Frank

Induced nuclear reactions: processes, systems, and elements

Reactor structures

Circulating fluid within reactor

62 28, 376904, C01B 2300, G21C 1528, C09K 500

Patent

active

043046347

ABSTRACT:
Isotopically enriched helium-4, that is, helium-4 which is low in helium-3, is useful as a nuclear reactor coolant. It is produced from liquefied natural gas source helium by distilling helium-3 therefrom. The coolant is preferably enriched in hydrogen up to about 6 percent by volume to thereby improve the heat transfer characteristics of the coolant, and to reduce the power requirements for circulation of the coolant.

REFERENCES:
patent: 3813889 (1974-06-01), Allam et al.
patent: 4101375 (1978-07-01), Garwin

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