Our PELICAN time-of-flight spectrometer has recently recommenced “hot commissioning”, following the 5-month shutdown of OPAL’s Neutron Guide Hall, and receipt of regulatory permission to run with thermal neutrons, rather than cold neutrons.
Today, we successfully measured our first diffraction pattern (without choppers running or beryllium filter in the beam) from a silicon standard, at a wavelength of 4.8 Angstroms.
As the beryllium filter was not installed, the pattern also includes extra reflections from higher orders of Bragg reflection from the pyrolytic-graphite monochromator.
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| First neutron diffraction pattern using PELICAN from a silicon standard, at a wavelength of 4.8 Angstroms |
Published: 23/04/2013