EMU - high-resolution neutron backscattering spectroscopy at ANSTO

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dc.contributor.authorde Souza, NRen_AU
dc.date.accessioned2022-06-29T02:07:54Zen_AU
dc.date.available2022-06-29T02:07:54Zen_AU
dc.date.issued2019-02-06en_AU
dc.date.statistics2021-10-12en_AU
dc.description.abstractEMU, the high-resolution neutron spectrometer installed at the OPAL reactor, ANSTO delivers 1 𝜇eV FWHM energy transfer resolution for an accessible ±31 𝜇eV energy transfer range. The spectral resolution is achieved by neutron backscattering from Si (111) on the primary and second flight paths, which also determines the accessible 0.35 to 1.95 Å-1 momentum transfer range. Two years of user operation document strong demand for QENS characterization of microscopic diffusion processes in energy materials such as solid-state electrolytes, and increasingly in biorelated soft materials. Over the same time frame most experiments were carried out with standard cryo-furnaces (2 to 800 K temperature range). Spectrometer beam-time access is meritbased, thus welcoming experiments beyond the first two-year 'sample', and including experiments that may require other ancillary equipment such as (existing) controlled-gas delivery, pressure, applied fields, etc. Examples of the spectrometer capabilities will be shown, with an emphasis on QENS line shape and mean-square displacements analyses. Scientific support is presently focused on enabling data analysis of the collected data, and on the instrumental side reaching the design 0.1 Å-1 minimum momentum transfer range and growing signal-to-noise ratio beyond its current ∼1650:1 value.en_AU
dc.identifier.citationDe Souza, N. (2019). EMU - high-resolution neutron backscattering spectroscopy at ANSTO. Paper presented to the 43rd Annual Condensed Matter and Materials Meeting, Charles Sturt University, Wagga Wagga, NSW, 5th February - 8th February, 2019. (pp. 19). Retrieved from: https://physics.org.au/wp-content/uploads/cmm/2019/Wagga_2019_Conference_Handbook.pdfen_AU
dc.identifier.conferenceenddate8 February 2019en_AU
dc.identifier.conferencename43rd Annual Condensed Matter and Materials Meetingen_AU
dc.identifier.conferenceplaceWagga Wagga, NSWen_AU
dc.identifier.conferencestartdate5 February 2019en_AU
dc.identifier.pagination19en_AU
dc.identifier.urihttps://physics.org.au/wp-content/uploads/cmm/2019/Wagga_2019_Conference_Handbook.pdfen_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/13324en_AU
dc.language.isoenen_AU
dc.publisherAustralian Institute of Physicsen_AU
dc.subjectANSTOen_AU
dc.subjectAustraliaen_AU
dc.subjectData processingen_AU
dc.subjectMeasuring instrumentsen_AU
dc.subjectResearch and test reactorsen_AU
dc.subjectSpectroscopyen_AU
dc.subjectWater cooled reactorsen_AU
dc.subjectOPAL Reactoren_AU
dc.titleEMU - high-resolution neutron backscattering spectroscopy at ANSTOen_AU
dc.typeConference Presentationen_AU
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