Simulation of the Performance of a Fundamental Neutron Physics Beamline at the High Flux Isotope Reactor.
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.
University of Tennessee, Knoxville, TN 37996, USA.
Rob
R
Mahurin
University of Tennessee, Knoxville, TN 37996, USA.
Geoffrey
G
Greene
Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA.
Paul
P
Kohler
Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA.
Vince
V
Cianciolo
beamline simulation; neutron optics