Gvaramia, M.
, Gutfreund, P.
, Falus, P.
, Faraone, A.
, Nagao, M.
and Wolff, M.
(2023),
Neutron Spin Echo Spectroscopy with a Moving Sample, Scientific Reports, [online], https://doi.org/10.1038/s41598-023-39854-4, https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=936899
(Accessed December 12, 2024)
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Neutron Spin Echo Spectroscopy with a Moving Sample
Published
Author(s)
Manuchar Gvaramia, Philipp Gutfreund, Peter Falus, , , Max Wolff
Abstract
Neutron spin echo spectroscopy is a high resolution inelastic neutron scattering method probing nanosecond dynamics. It is well suited to study the atomistic motion in polymer systems and contributes to our understanding of viscoelasticity. However, for samples under shear, or moving samples in general, Doppler scattering has to be considered. We compare the measured phase shift and depolarisation due to Doppler scattering from a rotating graphite disk to numerical and analytical calculations and find excellent agreement. This allows to take into account Doppler scattering during the data processing and makes longer Fourier times as well as higher shear rates and Q ranges possible with neutron spin echo spectroscopy, enabling for example the study of polymers under high shear.Citation
Scientific Reports
Volume
13
Pub Type
Journals
Download Paper
Citation
Issues
If you have any questions about this publication or are having problems accessing it, please contact reflib@nist.gov.
Created August 11, 2023, Updated November 12, 2024