PELICAN - a time of flight cold neutron spectrometer - recent scientific outcomes and new capabilities

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dc.contributor.authorYu, DHen_AU
dc.contributor.authorMole, RAen_AU
dc.date.accessioned2026-01-16T05:53:44Zen_AU
dc.date.available2026-01-16T05:53:44Zen_AU
dc.date.issued2024-02-06en_AU
dc.date.statistics2025-01-09en_AU
dc.description.abstractThe time-of-flight direct-geometry neutron spectrometer, Pelican, has been in user program since 2014 at the OPAL research reactor, at the Australian Nuclear Science and Technology Organisation (ANSTO). The Pelican instrument was designed to meet the diverse requirements of the Australian scientific community from physics, chemistry, material science, to biology. A wide range of research fields is covered. These include crystal-field excitations, phonon densities of states, magnetic excitations for various multifunctional materials including high Tc superconductors, novel magnetic, thermoelectric, ferroelectric and piezoelectric materials; molecular dynamics in hydrogen-bonded and storage materials, catalytic materials, cements, soils and rocks; and water dynamics in proteins and ion diffusion in membranes. Polarized neutrons and polarisation analysis option makes the full use of the neutron spin to study magnetism and to separate the coherent and incoherent scatterings. In this presentation, the recent scientific outcomes and recent developments of new capabilities of the instrument will be demonstrated with several systems studied using quasi-elastic and inelastic neutron scatterings. These include water dynamics around amino acids, crystal field excitations in magnetic molecular crystals, low energy magnetic excitations in spin frustrated magnet, oxygen diffusion in solid oxide conductors and phonon density of states in energy materials. To meet the demand of diverse user community, new sample environment equipment has been developed and commissioned including high pressure cell, in-situ light irradiation, fast dilution temperature cooling system and superconducting magnet. The upgrade of the instrument with focusing guides and further test of the polarisation system will be highlighteden_AU
dc.identifier.booktitle46th Annual Condensed Matter and Materials Meeting, Charles Sturt University, Wagga Wagga, NSW, 6 to 9 February, 2024, Conference Handbooken_AU
dc.identifier.citationYu, D., & Mole, R. (2024). PELICAN - a time of flight cold neutron spectrometer - recent scientific outcomes and new capabilities. Poster presentation to the 46th Annual Condensed Matter and Materials Meeting, Charles Sturt University, Wagga Wagga, NSW, 6 to 9 February, 2024. In 46th Annual Condensed Matter and Materials Meeting, Charles Sturt University, Wagga Wagga, NSW, 6 to 9 February, 2024, Conference Handbook (pp. 66). Parkville, Victoria : Australian Institute of Physics.en_AU
dc.identifier.conferenceenddate2024-02-09en_AU
dc.identifier.conferencename46th Annual Condensed Matter and Materials Meetingen_AU
dc.identifier.conferenceplaceWagga Wagga, NSWen_AU
dc.identifier.conferencestartdate2024-02-06en_AU
dc.identifier.pagination66en_AU
dc.identifier.placeofpublicationParkville, Victoriaen_AU
dc.identifier.urihttps://apo.ansto.gov.au/handle/10238/16902en_AU
dc.language.isoenen_AU
dc.publisherAustralian Institute of Physicsen_AU
dc.subjectANSTOen_AU
dc.subjectAustralian organizationsen_AU
dc.subjectAustraliaen_AU
dc.subjectMeasuring instrumentsen_AU
dc.subjectCrystal fielden_AU
dc.subjectDensity of statesen_AU
dc.subjectExcitationen_AU
dc.subjectInelastic scatteringen_AU
dc.subjectMagnetismen_AU
dc.subjectNeutron beamsen_AU
dc.subjectPerformanceen_AU
dc.subjectQuasi-elastic scatteringen_AU
dc.subjectSamplingen_AU
dc.subjectTime-of-flight spectrometersen_AU
dc.subjectUsesen_AU
dc.titlePELICAN - a time of flight cold neutron spectrometer - recent scientific outcomes and new capabilitiesen_AU
dc.typeConference Posteren_AU
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