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Radiation dose rates from consolidated fuel in current-generation shipping casks

Conference · · Trans. Am. Nucl. Soc.; (United States)
OSTI ID:5470474

As part of a US Department of Energy study of public risk from cask transport of consolidated and unconsolidated spent fuel cooled beyond 5 yr, radiation dose rates from two current-generation shipping casks were evaluated. The IF300 rail shipping cask, with a capacity of seven pressurized water reactor (PWR) assemblies, and NLI 1/2 truck shipping cask, with a capacity of one PWR assembly, were selected as appropriate cask models. A Westinghouse 17 x 17 fuel assembly with a 3.3 wt % /sup 235/U enrichment, operated at a specific power of 37.5 MW/MTU for 880 full-power days (20% downtime in history), and discharged at a burnup of 33 GWd/MTU was specified. Results for spent fuel cooling times of 5, 10, 15, and 25 yr are reported here. All calculations were performed using the SCALE computational system.

Research Organization:
Oak Ridge National Lab., TN
OSTI ID:
5470474
Report Number(s):
CONF-851115-
Journal Information:
Trans. Am. Nucl. Soc.; (United States), Journal Name: Trans. Am. Nucl. Soc.; (United States) Vol. 50; ISSN TANSA
Country of Publication:
United States
Language:
English