Note on the development, benchmarking and validation of the APT neutronics engineering code [electronic resource].

Published: Washington, D.C. : United States. Dept. of Energy, 1996.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description: 4 pages : digital, PDF file
Additional Creators: Brookhaven National Laboratory, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information

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Summary

Tritium production modeling can be used to gain cost savings and schedule improvements. However, at present much of the predictive uncertainty is in the modeling of neutron generation and transport, and tritium production in the target. These uncertainties require engineering design margins, primarily contingencies that increase the facility cost. Much of the uncertainty associated with the codes, in the (20--30)% uncertainty range, is thought to be due to multiple scattering (leakage) of high energy neutrons and possibly protons in the radial directions of range thick targets of less than (20--30) cm diameter. It is estimated that a well carried out neutronics measurement program coupled with high-energy transport code development could reduce the predictive engineering neutronics code uncertainty to the few percent level for all local or global geometries of use in the APT engineering design. This level of precision would then be comparable to the neutronics core physics codes employed in nuclear reactor design engineering. Following the improved engineering neutronics code development the overall engineering design contingencies for APT could then be reduced from the present (50--65)% level down to the more acceptable (25--30)% level.

Report Numbers

E 1.99:bnl--64651
E 1.99: conf-9605223--
conf-9605223--
bnl--64651

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Note

Published through SciTech Connect.
12/31/1996.
"bnl--64651"
" conf-9605223--"
"DE98000991"
"DP0404012"
Symposium on the Savannah River Accelerator project and complementary spallation neutron sources, Columbia, SC (United States), 14-15 May 1996.
Slaughter, D.; Hanson, A.; Todosow, M.; Dietrich, F. III; Ward, T.E.; Snead, C.L.

Funding Information

AC02-76CH00016

View MARC record | catkey: 14355212