Dynamics from elastic neutron-scattering via direct measurement of the running time-integral of the van Hove distribution function

Abstract We present a new neutron-scattering approach to access the van Hove distribution function directly in the time domain, I(t), which reflects the system dynamics. Currently, I(t) is essentially determined from neutron energy-exchange. Our method consists of the straightforward measurement of...

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Autores principales:	Antonio Benedetto, Gordon J. Kearley
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2019
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/a057147fc5bb41619e94e0176bc720bb
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spelling	oai:doaj.org-article:a057147fc5bb41619e94e0176bc720bb2021-12-02T15:07:55ZDynamics from elastic neutron-scattering via direct measurement of the running time-integral of the van Hove distribution function10.1038/s41598-019-46835-z2045-2322https://doaj.org/article/a057147fc5bb41619e94e0176bc720bb2019-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-019-46835-zhttps://doaj.org/toc/2045-2322Abstract We present a new neutron-scattering approach to access the van Hove distribution function directly in the time domain, I(t), which reflects the system dynamics. Currently, I(t) is essentially determined from neutron energy-exchange. Our method consists of the straightforward measurement of the running time-integral of I(t), by computing the portion of scattered neutrons corresponding to species at rest within a time t, (conceptually elastic scattering). Previous attempts failed to recognise this connection. Starting from a theoretical standpoint, a practical realisation is assessed via numerical methods and an instrument simulation.Antonio BenedettoGordon J. KearleyNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 9, Iss 1, Pp 1-6 (2019)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Antonio Benedetto Gordon J. Kearley Dynamics from elastic neutron-scattering via direct measurement of the running time-integral of the van Hove distribution function
description	Abstract We present a new neutron-scattering approach to access the van Hove distribution function directly in the time domain, I(t), which reflects the system dynamics. Currently, I(t) is essentially determined from neutron energy-exchange. Our method consists of the straightforward measurement of the running time-integral of I(t), by computing the portion of scattered neutrons corresponding to species at rest within a time t, (conceptually elastic scattering). Previous attempts failed to recognise this connection. Starting from a theoretical standpoint, a practical realisation is assessed via numerical methods and an instrument simulation.
format	article
author	Antonio Benedetto Gordon J. Kearley
author_facet	Antonio Benedetto Gordon J. Kearley
author_sort	Antonio Benedetto
title	Dynamics from elastic neutron-scattering via direct measurement of the running time-integral of the van Hove distribution function
title_short	Dynamics from elastic neutron-scattering via direct measurement of the running time-integral of the van Hove distribution function
title_full	Dynamics from elastic neutron-scattering via direct measurement of the running time-integral of the van Hove distribution function
title_fullStr	Dynamics from elastic neutron-scattering via direct measurement of the running time-integral of the van Hove distribution function
title_full_unstemmed	Dynamics from elastic neutron-scattering via direct measurement of the running time-integral of the van Hove distribution function
title_sort	dynamics from elastic neutron-scattering via direct measurement of the running time-integral of the van hove distribution function
publisher	Nature Portfolio
publishDate	2019
url	https://doaj.org/article/a057147fc5bb41619e94e0176bc720bb
work_keys_str_mv	AT antoniobenedetto dynamicsfromelasticneutronscatteringviadirectmeasurementoftherunningtimeintegralofthevanhovedistributionfunction AT gordonjkearley dynamicsfromelasticneutronscatteringviadirectmeasurementoftherunningtimeintegralofthevanhovedistributionfunction
_version_	1718388335072772096

Dynamics from elastic neutron-scattering via direct measurement of the running time-integral of the van Hove distribution function

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