Abstract

Abstract The Center for Neutron Research, now in the initial planning stage, is a reactor-based neutron facility that will be used for neutron scattering, isotope production, and materials irradiation. It will be a national user facility, open to scientists from universities, industry, and government laboratories. The design goal is to produce a thermal flux of 5 to 10 × 1015 neutrons cm-2 s-1 in a large heavy water reflector. Approximately 30 modern neutron-scattering instruments will be included with a strong emphasis on cold neutron experiments. Criteria and constraints involved in the core design are discussed in this article and the characteristics and performance of one preliminary design are presented. The estimated construction cost is about $300 million, and the annual operating cost will be about $15 million. The scientific productivity should be more than 30 times greater than at the High-Flux Isotope Reactor or the High-Flux Beam Reactor.

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