Neutron scattering

Neutron resonance spin echo

Neutron resonance spin echo is a quasielastic neutron scattering technique developed by Gähler and Golub. In its classic form it is used analogously to conventional neutron spin echo (NSE) spectrometry for quasielastic scattering where tiny energy changes from the sample to the neutron have to be resolved. In contrast to NSE, the large magnetic solenoids are replaced by two resonant flippers respectively. This allows for variants in combination with triple axes spectrometers to resolve narrow linewidth of excitations or MIEZE (Modulation of IntEnsity with Zero Effort) for depolarizing conditions and incoherent scattering which are not possible with conventional NSE. Neutron spin echo techniques achieve very high energy resolution in combination with very high neutron intensity by means of a decoupling of the energy resolution of the instrument from the wavelength spread of the neutrons. The energy transfer of the neutrons is encoded in their polarization and not in the change of the wavelength of the scattered neutrons. The final neutron polarization provides the (normalized) intermediate scattering function S(Q,τ), providing direct information on relaxation processes, activation energies, and the amplitudes of dynamic processes in the samples under investigation. (Wikipedia).

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From playlist MECHANICS

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Subscribe to our YouTube Channel for all the latest from World Science U. Visit our Website: http://www.worldscienceu.com/ Like us on Facebook: https://www.facebook.com/worldscienceu Follow us on Twitter: https://twitter.com/worldscienceu

From playlist Science Unplugged: Particle Physics

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http://www.teachastronomy.com/ Resonance is a phenomenon that's common to all vibrations and waves. It's a situation where a vibration, a wave, or an oscillation caused by one object induces a vibration, a wave, or an oscillation in another object. Obvious example of resonance is the fac

From playlist 10. The Solar System

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UCI Physics 3C: Basic Physics III (Fall 2013) Lec 26. Basic Physics III View the complete course: http://ocw.uci.edu/courses/physics_3c_basic_physics_iii.html Instructor: Michael Smy, Ph.D. License: Creative Commons CC-BY-SA Terms of Use: http://ocw.uci.edu/info More courses at http://ocw

From playlist Physics 3C: Basic Physics III

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From playlist PHYSICS E&M 3: MAGNETIC FIELDS, MAGNETIC FORCES, MAGNETIC FIELD SOURCES, ELECTROMAGNETIC INDUCTION

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Related pages

Helmholtz-Zentrum Berlin | Neutron spin echo | Spallation | Quasielastic neutron scattering | Larmor precession | Spin (physics) | Wavelength | Institut Laue–Langevin | Quasielastic scattering | Precession | Neutron | Brillouin zone | Neutron temperature | Neutron triple-axis spectrometry