New position-sensitive detector for the IN10 backscattering spectrometer

A new two-dimensional curved multidetector (PSD) has been installed on the backscattering spectrometer IN10 at the ILL. In this new configuration, the angular resolution is improved significantly and depending on the size of the sample, may vary from 2 degrees to 6 degrees (18 degrees in the old set up). This enables Bragg peaks to be located very precisely. Further more, b ecause exact backscattering geometry can be retained for all scattering ang les, the energy revolution is constant over the whole detector and is impro ved to 0.7 mu eV (0.8 in the old setup). (C) 2000 Elsevier Science B.V. All rights reserved.