Induced nuclear reactions: processes – systems – and elements – Reactor protection or damage prevention – Shield or barrier between radiation or heat source and...
Patent
1987-06-15
1988-08-30
Kyle, Deborah L.
Induced nuclear reactions: processes, systems, and elements
Reactor protection or damage prevention
Shield or barrier between radiation or heat source and...
220426, 376250, 376285, 376286, 376292, G21C 1304
Patent
active
047675934
ABSTRACT:
A multiple shell pressure vessel utilizes a number of spaced apart, concentrically disposed pressure vessel shells within and spaced apart from an outer pressure vessel shell, the spaces between each shell being filled with a low melting point, high boiling point material selected from the group, lead, tin, antimony, bismuth, or sodium and potassium, and mixtures thereof and subjected to a pressure whereby the innermost pressure vessel shell wall is maintained in compression while the main vessel is pressurized. Chemical compositions or compounds which contain boron or cadmium may also be added to the filler material. The vessel may include devices for keeping the pressure in the space between the innermost pressure vessel shell and the next innermost shell at a fixed predetermined multiple of the pressure within the innermost pressure vessel shell. A method of constructing the multiple shell pressure vessel includes a sequence of steps for filling the spaces between shells with the low melting point, high boiling point materials in such a way that the inner shell is compressed and the outer shells are in tension.
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Kyle Deborah L.
Tipton Robert R.
Wendtland Richard W.
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