Possible advances in backscattering spectroscopy

Andreas Magerl (Friedrich-Alexander University, Germany)

Since its invention 50 years ago, neutron backscattering spectroscopy has seen impressive advances in count rate, whereas the dynamic range and energy resolution have remained largely the same. Recently efforts were made to extend the accessible window by an order of magnitude through a fast chopper system in the primary spectrometer and to improve the energy resolution by an order of magnitude by replacing the Si 111 crystals by GaAs 200. First experimental results will be presented.

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