PELICAN: cold-neutron time-of-flight spectrometer at the Australian Centre for Neutron Scattering
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Date
2017-01-31
Journal Title
Journal ISSN
Volume Title
Publisher
Australian Institute of Physics
Abstract
PELICAN is a cold neutron time-of-flight neutron spectrometer located at the OPAL reactor within the Australian Centre for Neutron Scattering [1]. The instrument has been in continuous operation since 2014 and is currently available to the Australian research community for around 200 days a year. The applications of the inelastic neutron scattering techniques are diverse, ranging from the study of crystal field splitting and phonons in crystals through to the study of atomic diffusion. A range of wavelength options are available on PELICAN from 2.73 < λ < 5.97 Å providing corresponding energy resolutions in the range 0.6 < FWHM < 0.065 meV. Using appropriate phasing of the two choppers also provides additional wavelength harmonics, providing versatility without the need to reconfigure the instrument. Recent improvements to the instrument include the option to utilise polarised neutrons, in situ gas-loading for hydration experiments, and high temperature (up to 1600oC) capabilities. We have also designed and tested some custom-made quartz sample holders for ion diffusion studies in corrosive liquids. Future developments will allow use of a high-field magnet (< 7 T) on PELICAN as well as implementation of the software MANTID for data treatment and analysis.
Description
Keywords
Time-of-flight spectrometers, OPAL Reactor, ANSTO, Measuring instruments, Cold neutrons, Testing, Inelastic scattering, Crystals
Citation
Iles, G. N., Mole, R. A., & Yu, D. H. (2017). PELICAN: cold-neutron time-of-flight spectrometer at the Australian Centre for Neutron Scattering. Poster presented to the 41st Annual Condensed Matter and Materials Meeting, Charles Sturt University, Wagga Wagga, NSW, Australia, 31st January - 3rd February 2017, (pp. 59). Retrieved from: https://physics.org.au/wp-content/uploads/cmm/2017/Wagga_2017_Conference_Handbook.pdf