Please use this identifier to cite or link to this item: https://apo.ansto.gov.au/dspace/handle/10238/11314
Title: Data-processing technique for the Taipan “Be-filter” neutron spectrometer at the Australian Nuclear Science and Technology Organisation
Authors: Iles, GN
Rule, KC
Peterson, VK
Stampfl, APJ
Elcombe, MM
Keywords: Neutron spectrometers
Neutron sources
Neutron spectroscopy
Neutron diffraction
Photons
Monochromators
Density of states
Data processing
ANSTO
Australia
Issue Date: 9-Jul-2021
Publisher: American Institute of Physics (AIP)
Citation: Iles, G. N., Rule, K. C., Peterson, V. K., Stampfl, A. P., & Elcombe, M. M. (2021). Data-processing technique for the Taipan “Be-filter” neutron spectrometer at the Australian Nuclear Science and Technology Organisation. Review of Scientific Instruments, 92(7), 073304. doi:10.1063/5.0054786
Abstract: There are five filter-analyzer neutron spectrometers available worldwide for scientists to use in order to measure the vibrational density of states in various samples. While Taipan, the thermal spectrometer, has been operated as a triple-axis spectrometer at the Australian Centre for Neutron Scattering since 2010, a beryllium filter analyzer spectrometer was added in 2016. Due to the complex nature of the data post-processing, it has thus far been impossible to fully treat experimental data from scientific measurements taken over the last five years. We have successfully created a robust method of treating data from the Taipan filter-analyzer and present the method on three different samples. The data-treatment process includes correction for the non-linear energy variation of a particular monochromator, removal of higher-order wavelength contamination, and estimation of low-energy multiple-scattering. The steps described here can be utilized by all users of the Australian Nuclear Science and Technology Organisation “Be-filter”—past, present, and future. © 2021 Author(s). Published under an exclusive license by AIP Publishing.
URI: https://doi.org/10.1063/5.0054786
https://apo.ansto.gov.au/dspace/handle/10238/11314
ISSN: 1089-7623
Appears in Collections:Journal Articles

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