mQfit, a new program for analyzing quasi-elastic neutron scattering data

Abstract : Analysis of Quasi-elastic Neutron Scattering (QENS) data of complex systems such as biological or soft matter samples in a comprehensive and explicit way often requires great efforts. Most popular software only allows to fit spectra originating from one single instrument and does not permit to extract parameters from a model that is fitted simultaneously to data taken at different instrumental resolutions. We present here a new program, mQfit (multiple QENS dataset fitting), that enables to fit QENS data taken at different spectrometers (with typical resolutions between 0.01 and 0.1 meV) and momentum transfer ranges. This allows drastically reducing the number of fitting parameters. The routine is implemented with a user friendly Graphical User's Interface (GUI), and freely available. As an example, we will present results obtained on E. coli bacterial pellets, and compare them to values published in the literature.
Complete list of metadatas

Cited literature [2 references]  Display  Hide  Download

https://hal.archives-ouvertes.fr/hal-01582591
Contributor : Judith Peters <>
Submitted on : Wednesday, September 6, 2017 - 11:38:57 AM
Last modification on : Friday, April 5, 2019 - 1:02:01 AM

File

Martinez_epjconf-Qens-Wins2014...
Publisher files allowed on an open archive

Identifiers

Collections

Citation

Nicolas Martinez, Francesca Natali, Judith Peters. mQfit, a new program for analyzing quasi-elastic neutron scattering data. 11th International Conference on Quasielastic Neutron Scattering, May 2014, Autrans, France. pp.3010, ⟨10.1051/epjconf/20158303010⟩. ⟨hal-01582591⟩

Share

Metrics

Record views

255

Files downloads

80