Induced nuclear reactions: processes – systems – and elements – Nuclear transmutation – By neutron bombardment
Patent
1990-09-06
1992-01-21
Hunt, Brooks H.
Induced nuclear reactions: processes, systems, and elements
Nuclear transmutation
By neutron bombardment
376433, 376901, G21G 106
Patent
active
050826174
ABSTRACT:
An isotopic heat source is formed using stacks of thin individual layers of a refractory isotopic fuel, preferably thulium oxide, alternating with layers of a low atomic weight diluent, preferably graphite. The graphite serves several functions: to act as a moderator during neutron irradiation, to minimize bremsstrahlung radiation, and to facilitate heat transfer. The fuel stacks are inserted into a heat block, which is encased in a sealed, insulated and shielded structural container. Heat pipes are inserted in the heat block and contain a working fluid. The heat pipe working fluid transfers heat from the heat block to a heat exchanger for power conversion. Single phase gas pressure controls the flow of the working fluid for maximum heat exchange and to provide passive cooling.
REFERENCES:
patent: 3421001 (1969-01-01), Fitzerald et al.
patent: 3603415 (1971-09-01), Allen
patent: 3672443 (1972-06-01), Bienert et al.
patent: 3708268 (1973-01-01), Mayo et al.
patent: 3725663 (1973-04-01), Mayo et al.
SNAP-29 Power Supply System Final Report, vol. 1, Jun. 1969.
Van Konynenburg Richard
VanSant James H.
Walter Carl E.
Carnahan L. E.
Chelliah Meena
Hunt Brooks H.
Moser William R.
Sartorio Henry P.
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