SANS wavelength selection using a multilayer neutron monochromator

Brent J. Heuser; Alexander Mihai Popovici; William B. Yelon; Ronald Berliner

doi:10.1117/12.130632

23 November 1992 SANS wavelength selection using a multilayer neutron monochromator

Brent J. Heuser; Alexander Mihai Popovici; William B. Yelon; Ronald Berliner

Author Affiliations +

Proceedings Volume 1738, Neutron Optical Devices and Applications; (1992) https://doi.org/10.1117/12.130632
Event: San Diego '92, 1992, San Diego, CA, United States

Abstract

A small angle neutron scattering instrument is currently being designed at the University of Missouri Research Reactor. An anti-parallel arrangement of two Ni-Ti multilayers will serve as a neutron monochromator for this instrument. The first multilayer will be flat and in soller, or transmission, geometry. The second will be curved and in the conventional reflection geometry. The curvature of the second multilayer is designed to eliminate resolution asymmetry and increase the incident neutron intensity. The intensities are still too low with this arrangement, but can be increased two or threefold by depositing a second or third bilayer group with a spacing slightly offset from the first group.

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Brent J. Heuser, Brent J. Heuser, Alexander Mihai Popovici, Alexander Mihai Popovici, William B. Yelon, William B. Yelon, Ronald Berliner, Ronald Berliner, } "SANS wavelength selection using a multilayer neutron monochromator", Proc. SPIE 1738, Neutron Optical Devices and Applications, (23 November 1992); doi: 10.1117/12.130632; https://doi.org/10.1117/12.130632

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