J-NSE: Neutron spin echo spectrometer

Olaf Holderer, Oxana Ivanova

Abstract


Neutron Spin-Echo (NSE) spectroscopy is well known as the only neutron scattering technique that achieves energy resolution of several neV. By using the spin precession of polarized neutrons in magnetic field one can measure tiny velocity changes of the individual neutron during the scattering process. Contrary to other inelastic neutron scattering techniques, NSE measures the intermediate scattering function S(Q,t) in reciprocal space and time directly. The Neutron Spin-Echo spectrometer J-NSE, operated by JCNS, Forschungszentrum Jülich at the Heinz Maier-Leibnitz Zentrum (MLZ) in Garching, covers a time range (2 ps to 200 ns) on length scales accessible by small angle scattering technique. Along with conventional NSE spectroscopy that allows bulk measurements in transmission mode, J-NSE offers a new possibility - gracing incidence spin echo spectroscopy (GINSENS), developed to be used as "push-button" option in order to resolve the depth dependent near surface dynamics.

References


Mezei, F. (1980). The principles of neutron spin echo. In F. Mezei (Ed.), Neutron spin echo (Vol. 128, p. 1-26). Springer Berlin Heidelberg. http://dx.doi.org/10.1007/3-540-10004-0_16


Cite article as: Heinz Maier-Leibnitz Zentrum et al. (2015). J-NSE: Neutron spin echo spectrometer. Journal of large-scale research facilities, 1, A11. http://dx.doi.org/10.17815/jlsrf-1-34




DOI: http://dx.doi.org/10.17815/jlsrf-1-34

URN: http://nbn-resolving.de/urn:nbn:de:0001-jlsrf-1-34-0

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