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A Study of In-Reactor Densification of UO2 Fuel in the MH-1A Reactor.
BATTELLE COLUMBUS LABS OHIO
Pagination or Media Count:
Density data obtained by a mercury pycnometry technique provided conclusive evidence that the UO2 fuel in the MH-1A Reactor densified during operation. On the basis of optical metallographic observations, the densification occurred by annihilation of small as-fabrication porosity. The fuel densification did not result in any obvious decrease in the integrity of the fuel rods or the fuel assembly.
APPROVED FOR PUBLIC RELEASE