High-resolution diffraction using Larmor precession of polarized neutrons

Rekveldt, M. T.; Kraan, W.; Keller, T.

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High-resolution diffraction using Larmor precession of polarized neutrons

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Keller, T.
Department Solid State Spectroscopy (Bernhard Keimer), Max Planck Institute for Solid State Research, Max Planck Society;

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Citation

Rekveldt, M. T., Kraan, W., & Keller, T. (2002). High-resolution diffraction using Larmor precession of polarized neutrons. Journal of Applied Crystallography, 35, 28-33.

Cite as: https://hdl.handle.net/21.11116/0000-000E-EF47-6

Abstract

A new Larmor precession device, consisting of two separate
precession modules, is introduced. It operates as a high-
resolution neutron diffractometer, without the need for a
highly collimated beam, necessary in conventional high-
resolution neutron diffraction. The same instrument operates in
different modes as an effective small-angle scattering device
or accurately determines the line profile, the lattice plane
orientation or the angular spread in crystal orientations. A
dramatic intensity gain can be obtained in all applications
discussed, compared with the conventional analogues, owing to
the possibility to use a relaxed wavelength and angular
resolution. Experiments in the high-resolution diffraction mode
on Si and Al are discussed.