Results 1 to 10 of about 633 (159)

Dynamics studied by Quasielastic Neutron Scattering (QENS) [PDF]

Adsorption, 2021
AbstractQuasielastic neutron scattering (QENS) allows measurement of the molecular displacements in time and space, from pico- to tens of nanoseconds and from Ångstroms to nanometers, respectively. The method probes dynamics from fast vibrational modes down to slow diffusive motion.
Margarita Kruteva
exaly   +3 more sources

A modern approach to QENS data analysis in Mantid [PDF]

Physica B: Condensed Matter, 2019
Abstract Data analysis of Quasi-elastic Neutron Scattering (QENS) experiments often requires multiple steps involving fitting the elastic and quasi-elastic parts of spectra with several empirical functions and analytical models. Parameters of those models can be interdependent and also dependent on the momentum transfer vector Q.
Sanghamitra Mukhopadhyay, A J Markvardsen   +1 more
exaly   +2 more sources

Dynamics in Biological Systems as seen by QENS [PDF]

Zeitschrift Fur Physikalische Chemie, 2010
Abstract Quasielastic incoherent neutron scattering is a well suited and established experimental method to study protein and water dynamics in the picosecond to nanosecond time- and Ångstrom length-scale. Using deuterium labelling either protein or water motions can be selected and brought into focus.
Andreas M Stadler
exaly   +3 more sources

Microscopic dynamics of glycerol: a QENS study

Journal of Physics: Conference Series, 2014
We report on a quasielastic incoherent neutron scattering (QENS) experiment onliquid glycerol. QENS data were collected at thetemperature T=380 K and witharesolution(FWHM)R=55µeV.The analysis of the quasielastic signal enables us to draw a consistentpicture of the diffusive mechanism on a picosecond time scale and to compare with most recentmodels for ...
Alessandro Vispa, M Rovira-Esteva, Sebastian Büsch   +2 more
exaly   +4 more sources

Lattice-driven gating in a Cu-based zeolitic imidazolate framework for efficient high-temperature hydrogen isotope separation [PDF]

Nature Communications
For the separation of hydrogen isotopes (H2/D2), traditional kinetic quantum sieving (KQS) takes advantage of the diffusion barriers created by the flexibility of organic linkers and the breathing frameworks in porous solids.
Minji Jung, Jaewoo Park, Raeesh Muhammad, Taeung Park, Sung-Yeop Jung, Jungwon Yi, Cheolwon Jung, Jacques Ollivier, Anibal J. Ramirez-Cuesta, Jitae T. Park, Jaheon Kim, Margarita Russina, Hyunchul Oh   +12 more
doaj   +2 more sources

Quasi Elastic Neutron Scattering model library [PDF]

EPJ Web of Conferences, 2023
This paper reports on the development of a collection of dynamical models of one-dimensional peak profile functions used to fit dynamic structure factors S (Q, ħω) of Quasi Elastic Neutron Scattering (QENS) data.
Durniak Céline, González Miguel Angel, Markvardsen Anders, Mukhopadhyay Sanghamitra, Lang Franz, Rod Thomas Holm   +5 more
doaj   +1 more source

Notes on Fitting and Analysis Frameworks for QENS Spectra of (Soft) Colloid Suspensions [PDF]

EPJ Web of Conferences, 2022
With continuously improving signal-to-noise ratios, a statistically sound analysis of quasi-elastic neutron scattering (QENS) spectra requires to fit increasingly complex models which poses several challenges.
Beck Christian, Pounot Kevin, Mosca Ilaria, H Jalarvo Niina, Roosen-Runge Felix, Schreiber Frank, Seydel Tilo   +6 more
doaj   +1 more source

Impact of composition on the crystal texture and on the dynamics of P(THF-co-ECH) copolymers [PDF]

EPJ Web of Conferences, 2022
We present a combined study by quasielastic neutron scattering (QENS), differential scanning calorimetry (DSC) and wide angle X-ray scattering (WAXS) on poly(tetrahydrofuran-co-epichlorohydrin) copolymers, to see how their composition can be used to tune
Maiz Jon, Verde-Sesto Ester, Asenjo-Sanz Isabel, Juranyi Fanni, Pomposo José A., Arbe Arantxa, Colmenero Juan   +6 more
doaj   +1 more source

Effect of red blood cell shape changes on haemoglobin interactions and dynamics: a neutron scattering study [PDF]

Royal Society Open Science, 2020
By using a combination of experimental neutron scattering techniques, it is possible to obtain a statistical perspective on red blood cell (RBC) shape in suspensions, and the inter-relationship with protein interactions and dynamics inside the ...
Keyun Shou, Mona Sarter, Nicolas R. de Souza, Liliana de Campo, Andrew E. Whitten, Philip W. Kuchel, Christopher J. Garvey, Andreas M. Stadler   +7 more
doaj   +1 more source

Broadband Wide-Angle VElocity Selector (BWAVES) neutron spectrometer designed for the SNS Second Target Station [PDF]

EPJ Web of Conferences, 2022
A recently proposed wide-angle velocity selector (WAVES) device for choosing the velocity of detected neutrons after they have been scattered by the sample paves the way for inverted geometry neutron spectrometers with continuously adjustable final ...
Mamontov Eugene, Bordallo Heloisa N., Delaire Olivier, Nickels Jonathan, Peters Judith, Schneider Gerald J., Smith Jeremy C., Sokolov Alexei P.   +7 more
doaj   +1 more source