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Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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Latest News
UM conducts molten salt experiment
For 2,300 hours, the molten salt pump Shaft Seal Test Facility (SSTF) operated at the University of Michigan’s Thermal Hydraulics Laboratory, according to an article from UM. The large-scale experiment was designed to evaluate shaft seal performance in high-temperature pump systems. Fewer than 10 facilities worldwide have successfully operated fluoride or chloride salts for more than 100 hours using over 10 kilograms of material.
R. C. Block, G. G. Slaughter, J. A. Harvey
Nuclear Science and Engineering | Volume 8 | Number 2 | August 1960 | Pages 112-121
Technical Paper | doi.org/10.13182/NSE60-A25786
Articles are hosted by Taylor and Francis Online.
The neutron total cross sections of U233, U235, Pu240, U234, and I129 were measured with the new ORNL fast chopper time-of-flight neutron spectrometer over an energy range from approximately O.02 to O.20 ev. The cross section data have been fitted in the energy range from approximately O.02 to O.04 ev by the least squares method to the following equation: where σT and σsc are the total and scattering cross sections, E is the neutron energy, and a and b are the coefficients of fit. From this least squares fit, the 2200 m/sec neutron total cross sections of U233, U235, Pu240, U234, and I129 were determined to be 587 ± 3, 693 ± 5, 290 ± 8, 110 ± 4, and 35 ± 4 barns, respectively. A brief description of the new ORNL fast chopper time-of-flight neutron spectrometer is included in this paper.