Abstract
We address recent progress in the continued neutronic design of the Spallation Neutron Source Target Station as regards moderator performance. The Spallation Neutron Source Target Station will receive 2 MW of 1 GeV protons at 60 Hz. This level of proton power offers unprecedented neutronic performance for pulsed neutron production for time-of-flight neutron scattering, as well as unprecedented challenges in providing such a performance. We report on the results of recent design optimization studies and the importance of carefully matching moderator performance characteristics to the needs of the neutron scattering instruments.
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