1. Data-processing technique for the Taipan "Be-filter" neutron spectrometer at the Australian Nuclear Science and Technology Organisation.
- Author
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Iles, Gail. N., Rule, Kirrily. C., Peterson, Vanessa. K., Stampfl, Anton P. J., and Elcombe, Margaret M.
- Subjects
NEUTRON spectrometers ,NUCLEAR science ,NEUTRON scattering ,DENSITY of states ,SPECTROMETERS ,NEUTRON radiography ,MONOCHROMATORS - 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. [ABSTRACT FROM AUTHOR]
- Published
- 2021
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