Simulation of the Performance of a Fundamental Neutron Physics Beamline at the High Flux Isotope Reactor
Rob Mahurin1, Geoffrey Greene1, Paul Kohler2
1University of Tennessee, Knoxville, TN 37996, USA.
Abstract:
We study the expected performance of the proposed fundamental neutron physics beamline at the upgraded High Flux Isotope Reactor at Oak Ridge National Laboratory. A curved neutron guide transmits the neutrons from the new cold source into a guide hall. A novel feature of the proposed guide is the use of vertical focussing to increase the flux for experiments that require relatively small cross-section beams. We use the simulation code IB to model straight, multi-channel curved, and tapered guides of various m values. Guide performance for the current NPDGamma and proposed abBA experiments is evaluated.
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