Radiant energy – Radiation controlling means – Shields
Patent
1975-03-17
1977-01-18
Borchelt, Archie R.
Radiant energy
Radiation controlling means
Shields
250506, 250507, G21F 300, G21C 1100
Patent
active
040041549
ABSTRACT:
An apparatus for the safe storage of a plurality of fissionable masses including an array of discrete neutron absorbing shields which utilizes the principle of the neutron trap to reduce the multiplication factor of the storage array to a subcritical value when immersed in a neutron moderating medium. Each discrete neutron absorbing shield is designed to perimetrically encircle each of the stored fissionable masses. Each shield is spaced such that the encircled fissionable mass is spaced from the next adjacent neutron absorbing shield by a distance determined by the enrichment of the fissionable masses and attenuation of the moderating medium.
REFERENCES:
patent: 3037120 (1962-05-01), McDaniels, Jr.
patent: 3119933 (1964-01-01), Allen
patent: 3229096 (1966-01-01), Bonilla et al.
patent: 3230373 (1966-01-01), Montgomery
patent: 3823065 (1974-07-01), Jones
patent: 3845315 (1974-10-01), Blum
patent: 3859533 (1975-01-01), Suvanto
Borchelt Archie R.
Borst Stephen L.
Combustion Engineering Inc.
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