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U.S. Department of Energy
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LOFT shield tank steady state temperatures with addition of gamma and neutron shielding. Supplement 1

Technical Report ·
OSTI ID:5580525
Some changes have been made in the final design of the LOFT gamma and neutron shield canister assembly. These changes involve the addition of spacer plates every 2 inches in each canister to minimize powder separation, the deletion of the high density shield material (95% theoretical density) from each canister and the lengthening of each canister to 8.41 inches. These changes, however, have a negligible effect on the thermal analysis of the shielding system. The added spacer plates provide a negligibly small conduction path. The deletion of the 95% theoretical density material only improves the insulating qualities of the neutron shield, since the 60% theoretical density material in its place is a better insulator. Finally, the addition of approximately 2 inches of neutron shield does not influence previous calculations since the total effective length was conservatively estimated at 20.5 inches.
Research Organization:
EG and G Idaho, Inc., Idaho Falls (USA)
DOE Contract Number:
AC07-76ID01570
OSTI ID:
5580525
Report Number(s):
EGG/LTR-129-11-Suppl.1; RE-A-77-098-Suppl.1; ON: DE85015434
Country of Publication:
United States
Language:
English