Bulletin of the American Physical Society
APS March Meeting 2021
Monday–Friday, March 15–19, 2021; Virtual; Time Zone: Central Daylight Time, USA
Session C06: Rheology and Flow of Soft Materials
3:00 PM–6:00 PM,
Monday, March 15, 2021
Sponsoring Unit: DSOFT
Chair: Irmgard Bischofberger, Massachusetts Institute of Technology MIT
Abstract: C06.00009 : Neutron Spin Echo Spectroscopy at the Spallation Neutron Source
4:36 PM–4:48 PM
The SNS-NSE instrument  at the Spallation Neutron Source, Oak Ridge National Laboratory is the first, and to date the only one, instrument for high resolution NSE spectroscopy installed at a pulsed neutron source.The main advantage of the pulsed source NSE is the ability to resolve the neutron wavelength and collect neutrons over a wider bandwidth. This allows one to determine S(Q,t) on a flexibly chosen quasi continuous [Q,t] grid that can be selected a posteriori, trading statistical error with grid resolution.
We will show the capabilities of the SNS-NSE instrument and examples of soft matter experiments that have been performed using the SNS-NSE instrument. We will also present a new data reduction software called DrSPINE  that is capable to utilize all the available information contained in a series of experiments consistently in one step to yield a comprehensive representation of the intermediate scattering function S(Q,t).
 M. Monkenbusch, D. Richter, C. R. Physique 8 (2007) 845
 M. Ohl et al., Nucl. Inst. and Meth. A 696 (2012) 85-99
 P.A. Zolnierczuk et al. J. Appl. Cryst. (2019). 52, 1022-1034
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