Today, for the first time, we successfully used the new helium-3 system as both polariser and analyser, to perform polarisation-analysis measurements on our WOMBAT high-intensity powder diffractometer.
This is the first time that such neutron experiments have been performed outside of a few laboratories in the USA, Europe and Japan. The experiment used the "Pastis" coils and the wide-angle analyser cell, provided to us by the Institut Laue-Langevin in Grenoble, France.
In one sample/field arrangement, we achieved a flipping ration between 20 and 30, and in the other a flipping ratio of 7 (which is understood in terms of a ferromagnetic component in the sample). Congratulations to Hal Lee, Tim D'Adam, Andrew Studer and Clemens Ulrich for leading the effort to achieve this.
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| Polarisation-analysis data from WOMBAT. |
Published: 27/04/2014