L. A. Chizhova, S. Rotter, T. Jenke, G. Cronenberg, P. Geltenbort, H. Abele, J. Burgdörfer
We perform classical Monte Carlo simulations of ultracold neutron transport through an absorbing-reflecting mirror system in the Earth's gravitational field. We show that the underlying mixed phase space of regular skipping motion and random motion due to disorder scattering can be exploited to realize a velocity filter for ultracold neutrons. The range of velocities selected is controlled by geometric parameters of the wave guide. Possible applications include investigations of transport and scattering dynamics in confined systems.
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http://arxiv.org/abs/1212.0668
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