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Spent fuel transfer project completed at INL
Work crews at Idaho National Laboratory have transferred 40 spent nuclear fuel canisters into long-term storage vaults, the Department of Energy’s Office of Environmental Management has reported.
James H. Renken
Nuclear Science and Engineering | Volume 63 | Number 3 | July 1977 | Pages 330-335
Technical Paper | doi.org/10.13182/NSE77-A27044
Articles are hosted by Taylor and Francis Online.
The operation of pulsed-neutron uranium logging systems is clarified through the derivation of a theoretical expression that shows the relative detector output attributable to rock at different distances from the detector. The results of numerical neutron transport calculations are used to evaluate this expression. Although the theory considered here is applicable to several nuclear logging methods, we restrict our attention to an examination of the prompt fission neutron method. Results show that, depending on the water content of the rock matrix, significant contributions to the detector output are caused by ore-bearing rock as far as 0.3 to 0.5 m from the detector.