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An automatic Laue neutron-diffractometer based upon two high-performance image-intensified CCD cameras coupled to a large-area neutron scintillator. It allows electronic capture of neutron Laue diffraction patterns in a very short time (few seconds). A gain of about 100 in efficiency is obtained compared to the conventional film method with comparable spatial resolution.

Laue diffractometer OrientExpressPhone number on the instrument +33 (0)4 76 20 72 90 (shared with CYCLOPS)
Instrument Team
General viewsOrientExpress is a CCD-based flat-plate Laue diffractometer. The detector can be rotated around the sample and thus can accomodate any of the geometries from transmission to backscattering. In the latter case, the neutrons pass through the detector enclosure along a light-tight pipe through the centre of the scintillator. With this instrument, a neutron Laue pattern can be obtained within a few seconds of beam time making it possible to both assess the sample quality and to orient it in a very short period of time. Sample transferReferences"OrientExpress: A new system for Laue neutron diffraction ", Ouladdiaf B. , Archer J. , McIntyre G.J. , Hewat A.W. , Brau D. , York S., Physica B 385-386, 1052-1054 (2006). |