EXPANSE: A time-of-flight EXPanded Angle Neutron Spin Echo spectrometer at the Second Target Station of the Spallation Neutron Source
Name
075107_1_online.pdf
Description
Published version
Size
8.69 MB
Format
Adobe PDF
Checksum (MD5)
9f8119586f9e186f4b7fd0d32863cdac
Author(s)
Do, Changwoo
Ashkar, Rana
Boone, Cristina
Chen, Wei-Ren
Ehlers, Georg
Falus, Peter
Faraone, Antonio
Gardner, Jason S
Graves, Van
Huegle, Thomas
Date Issued
July 11, 2022
Journal
Review of Scientific Instruments
Publisher
AIP Publishing
Citation
Changwoo Do, Rana Ashkar, Cristina Boone, Wei-Ren Chen, Georg Ehlers, Peter Falus, Antonio Faraone, Jason S. Gardner, Van Graves, Thomas Huegle, Reika Katsumata, Darian Kent, Jiao Y. Y. Lin, Bill McHargue, Bradley Olsen, Yangyang Wang, Danielle Wilson, Y Z; EXPANSE: A time-of-flight EXPanded Angle Neutron Spin Echo spectrometer at the Second Target Station of the Spallation Neutron Source. Rev. Sci. Instrum. 1 July 2022; 93 (7): 075107.
Version
Final published version
Abstract
EXPANSE, an EXPanded Angle Neutron Spin Echo instrument, has been proposed and selected as one of the first suite of instruments to be built at the Second Target Station of the Spallation Neutron Source at the Oak Ridge National Laboratory. This instrument is designed to address scientific problems that involve high-energy resolution (neV–μeV) of dynamic processes in a wide range of materials. The wide-angle detector banks of EXPANSE provide coverage of nearly two orders of magnitude in scattering wavenumbers, and the wide wavelength band affords approximately four orders of magnitude in Fourier times. This instrument will offer unique capabilities that are not available in the currently existing neutron scattering instruments in the United States. Specifically, EXPANSE will enable direct measurements of slow dynamics in the time domain over wide Q-ranges simultaneously and will also enable time-resolved spectroscopic studies. The instrument is expected to contribute to a diverse range of science areas, including soft matter, polymers, biological materials, liquids and glasses, energy materials, unconventional magnets, and quantum materials.
MIT Department
Massachusetts Institute of Technology. Department of Chemical Engineering
Terms of Use
Creative Commons Attribution
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DOI of Published Version
10.1063/5.0089349
