Neutron backscattering is one of several inelastic neutron scattering techniques. Backscattering from monochromator and analyzer crystals is used to achieve an energy resolution in the order of μeV. Neutron backscattering experiments are performed to study atomic or molecular motion on a nsec scale.

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Existing backscattering spectrometers at reactors:

• IN10 at the Institut Laue-Langevin
• IN13 at the Institut Laue-Langevin
• IN16 at the Institut Laue-Langevin
• High flux backscattering spectrometer (HFBS) at NIST
• backscattering spectrometer at the DIDO reactor of the Forschungszentrum Jülich
• SPHERES, an instrument of Forschungszentrum Jülich at FRM-II (under construction)

Inverse geometry spectrometers at spallation sources:

• IRIS at ISIS at Rutherford-Appleton
• BS spectrometer at SNS (under construction)
• MARS at Paul-Scherrer-Institut (under construction)

A historical and updated review on neutron backscattering and its applications can be found on WEB-site of Neutron Backscattering Spectroscopy