High-precision neutron spectrometry, using diffraction focusing. Test experiment

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I.A. Kuznetsov, Ya.A. Berdnikov, A.Ya. Berdnikov, Yu.V. Borisov, Yu.P. Braginetz, V.V. Fedorov, M.V. Lasitsa, S.Yu. Semenikhin, M.L. Khorina, V.V. Voronin

The effect of double-crystal neutron focusing, using Laue diffraction in large perfect crystals was studied. The observed effect allows reach the angular resolution better than 0.03", that is ~ 10^-2 of the Bragg reflection width. This fact makes it possible to create a new ultraprecise method for neutron spectrometry combining the spin-echo small angle neutron scattering with Laue diffraction.

J. Phys.: Conf. Ser. 746 (2016) 012049

• http://iopscience.iop.org/article/10.1088/1742-6596/746/1/012049