EXPANSE: A time-of-flight EXPanded Angle Neutron Spin Echo spectrometer at the Second Target Station of the Spallation Neutron Source-Reference-Cited by-同舟云学术

EXPANSE: A time-of-flight EXPanded Angle Neutron Spin Echo spectrometer at the Second Target Station of the Spallation Neutron Source

Published:2022-07-01 Issue:7 Volume:93 Page:075107
ISSN:0034-6748
Container-title:Review of Scientific Instruments
language:en
Short-container-title:Review of Scientific Instruments

Author:

Do Changwoo¹^ORCID,Ashkar Rana²^ORCID,Boone Cristina³^ORCID,Chen Wei-Ren¹^ORCID,Ehlers Georg⁴^ORCID,Falus Peter⁵^ORCID,Faraone Antonio⁶^ORCID,Gardner Jason S.⁷^ORCID,Graves Van³^ORCID,Huegle Thomas⁴^ORCID,Katsumata Reika⁸^ORCID,Kent Darian³,Lin Jiao Y. Y.³^ORCID,McHargue Bill⁴,Olsen Bradley⁹^ORCID,Wang Yangyang¹⁰^ORCID,Wilson Danielle³^ORCID,Z Y¹¹¹²¹³^ORCID

Affiliation:

1. Neutron Scattering Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA

2. Department of Physics and Center for Soft Matter and Biological Physics, Virginia Tech, Blacksburg, Virginia 24061, USA

3. Second Target Station, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA

4. Neutron Technologies Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA

5. Institute Laue Langevin (ILL), 71 Avenue des Martyrs, 38000 Grenoble, France

6. Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, Maryland 20899-6102, USA

7. Material Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA

8. Polymer Science and Engineering, University of Massachusetts Amherst, Amherst, Massachusetts 01003, USA

9. Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA

10. Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA

11. Department of Nuclear, Plasma, and Radiological Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA

12. Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA

13. Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA

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.

Publisher

AIP Publishing

Subject

Instrumentation

Link

https://aip.scitation.org/doi/pdf/10.1063/5.0089349

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