Results 161 to 170 of about 28,456 (214)

Incoherent quasi-elastic neutron scattering in isomeric alcohols

Physica B: Condensed Matter, 1992
Incoherent quasi-elastic neutron scattering (IQENS) data on liquid isomeric alcohols normal-pentanol (n-PeOH) and 2-methyl-2-butanol (2M-2BuOH) and on their mixture are presented. The diffusive motion of protons, as a function of temperature, is analyzed in the framework of the random jump diffusion model.
ALIOTTA, F, BELLISSENTFUNEL, MC, DONATO, DI, MIGLIARDO, P, VASI, C   +9 more
openaire   +2 more sources

Quasi-elastic Neutron Scattering Measurements of Liquid Germanium

Journal of Neutron Research, 2005
Quasi-elastic neutron scattering measurements of liquid germanium were carried out at 1000 and 1500°C, using the inverted geometry inelastic neutron spectrometer, LAM-40. The dynamic structure factor, S(Q,E), is obtained over a wide momentum transfer region from 0.6 to 5.1 Å −1 .
Y. Kato, Y. Kawakita, K. Shibata, S. Takeda, W.-C. Pilgrim   +4 more
openaire   +1 more source

Neutron quasi-elastic scattering in materials research

Bulletin of Materials Science, 1985
The paper reviews the quasi-elastic neutron scattering activities at the Bhabha Atomic Research Centre and demonstrates how this technique gives information on rates and geometries of stochastic motions in liquids and solids.
B A Dasannacharya
exaly   +2 more sources

Quasi‐elastic neutron scattering in gels and solutions

Makromolekulare Chemie. Macromolecular Symposia, 1993
AbstractMeasurements of swelling pressure, neutron spin‐echo scattering, and dynamic light scattering were made in an end‐linked poly(dimethylsiloxane) (PDMS) gel swollen to equilibrium in a good solvent (toluene) and also in the equivalent solution. The macroscopic osmotic modulus is depressed in the gel. Neutron spin echo observations at intermediate
Erik Geissler, Anne‐Marie Hecht, Armel Guillermo, Ferenc Horkay, Jean François Legrand, Simon Mallam   +5 more
openaire   +1 more source

Neutron quasi-elastic scattering of n-nonadecane

Chemical Physics Letters, 1979
Abstract A neutron quasi-elastic investigation of the plastic phase of a randomly orientated sample of n -nonadecane shows good agreement with a simple continuous rotational diffusion model of the molecule about its long axis. No quasi-elastic broadening is observed in the lower temperature phase.
D.H. Bonsor, J.F. Barry, M.W. Newbery, M.V. Smalley, E. Granzer, C. Koberger, P.H. Nedwed, J. Scheidel   +7 more
openaire   +1 more source

A quasi-elastic neutron scattering (QNS) study

Philosophical Magazine A, 1987
Abstract Quasi-elastic line broadening of neutrons scattered from 2at.%Co alloyed in β-Zr shows that at about 1100°C all Co atoms, not merely a small fraction, participate in fast diffusion of Co in Zr within a time interval of 10−9s. In the measured temperature range of 950 to 1380°C the deduced jump frequency is about 20 times faster than that of Zr ...
W. Petry, G. Vogl, A. Heidemann, K.-H. Steinmetz   +3 more
openaire   +1 more source

Inelastic and Quasi-Elastic Neutron Scattering

2016
This chapter describes the basic principles of inelastic and quasi-elastic neutron scattering as applied to hydrogen storage systems—in particular to provide an understanding of the vibrations and diffusion of hydrogen and deuterium in the host lattice. The techniques are then illustrated using typical hydrogen storage materials.
D. Keith Ross, Daniel L. Roach
openaire   +1 more source

Biophysical Applications of Quasi-Elastic and Inelastic Neutron Scattering

Annual Review of Biophysics and Biomolecular Structure, 1984
Thermal and cold neutrons with de Broglie wavelengths in the 1 to 20 A region are versatile probes of the structure and dynamics of organic molecules. Neutron diffraction, i.e. the study of interference patterns produced by coherently scattered neutrons, has already been used exten­ sively in structural investigations of a wide range of biomolecular ...
openaire   +2 more sources

Polarised neutron inelastic and quasi-elastic scattering

Journal of Magnetism and Magnetic Materials, 1979
Abstract Recent developments in the use of polarisation analysis for separating magnetic scattering effects are presented. Two applications are highlighted: one is diffuse magnetic scattering by paramagnetic metals, the other concerns the unambiguous identification of magnetic excitations.
K.R.A. Ziebeck, C. Escribe, P.J. Brown
openaire   +1 more source

Quasi elastic scattering of slow neutrons in pentanol

Physics Letters A, 1967
Abstract The energy analysed angular distributions for pentanol at room temperature have been studied on a triple-axis crystal spectrometer.
S. Râpeanu, N. Iliescu
openaire   +1 more source