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Virtual tour

OrientExpress - Test Laue neutron-diffractometer

OrientExpress - Test Laue neutron-diffractometer

OrientExpress is 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.

Applications

  • minute sample orientation
  • assessment of sample quality
  • diffuse scattering

A general view of the instrument

OrientExpress is shown here in the transmission geometry.

Sample transfer

A single neutron Laue pattern is usually enough to find the sample orientation and then rotate it to the desired orientation. Then the oriented sample can be glued at the tip of the sample holder which will be used for measurements on the ILL spectrometers.