Spin-echo resolved grazing incidence scattering (SERGIS) of cold neutrons

2002 ◽  
Author(s):  
Gian P. Felcher ◽  
Suzanne G. E. te Velthuis ◽  
Janos Major ◽  
Helmut Dosch ◽  
Charlotte Anderson ◽  
...  
Keyword(s):  
Spin Echo ◽  
Grazing Incidence ◽  
Cold Neutrons

scholarly journals Grazing Incidence Neutron Spin Echo Study of Poly(N-isopropylacrylamide) Brushes

2020 ◽  
Vol 53 (5) ◽  
pp. 1819-1830 ◽  
Author(s):  
Judith Witte ◽  
Patrick Krause ◽  
Tetyana Kyrey ◽  
Anna Margarethe Dahl ◽  
Jana Lutzki ◽  
...  
Keyword(s):  
Spin Echo ◽  
Grazing Incidence ◽  
Neutron Spin ◽  
Neutron Spin Echo

scholarly journals Dynamical theory calculations of spin-echo resolved grazing-incidence scattering from a diffraction grating

2010 ◽  
Vol 43 (3) ◽  
pp. 455-465 ◽  
Author(s):  
Rana Ashkar ◽  
P. Stonaha ◽  
A. L. Washington ◽  
V. R. Shah ◽  
M. R. Fitzsimmons ◽  
...  
Keyword(s):  
Diffraction Grating ◽  
Continuous Wave ◽  
Spin Echo ◽  
Grazing Incidence ◽  
Grating Period ◽  
Dynamical Theory ◽  
Neutron Spin ◽  
Wave Source ◽  
Rectangular Profile ◽  
Good Account

Neutrons scattered or reflected from a diffraction grating are subject to a periodic potential analogous to the potential experienced by electrons within a crystal. Hence, the wavefunction of the neutrons can be expanded in terms of Bloch waves and a dynamical theory can be applied to interpret the scattering phenomenon. In this paper, a dynamical theory is used to calculate the results of neutron spin-echo resolved grazing-incidence scattering (SERGIS) from a silicon diffraction grating with a rectangular profile. The calculations are compared with SERGIS measurements made on the same grating at two neutron sources: a pulsed source and a continuous wave source. In both cases, the spin-echo polarization, studied as a function of the spin-echo length, peaks at integer multiples of the grating period but there are some differences between the two sets of data. The dynamical theory explains the differences and gives a good account of both sets of results.

A spin-echo resolved grazing incidence scattering setup for the neutron interrogation of buried nanostructures

2009 ◽  
Vol 80 (12) ◽  
pp. 123903 ◽  
Author(s):  
János Major ◽  
Alexei Vorobiev ◽  
Adrian Rühm ◽  
Ralf Maier ◽  
Márton Major ◽  
...  
Keyword(s):  
Spin Echo ◽  
Grazing Incidence ◽  
Neutron Interrogation

scholarly journals Using Neutron Spin Echo Resolved Grazing Incidence Scattering to Investigate Organic Solar Cell Materials

10.3791/51129 ◽  
2014 ◽  
Author(s):  
Andrew J. Parnell ◽  
Adam Hobson ◽  
Robert M. Dalgliesh ◽  
Richard A. L. Jones ◽  
Alan D. F. Dunbar
Keyword(s):  
Solar Cell ◽  
Organic Solar Cell ◽  
Spin Echo ◽  
Grazing Incidence ◽  
Neutron Spin ◽  
Neutron Spin Echo

RESEDA—The new resonance spin echo spectrometer using cold neutrons at the FRM-II

2007 ◽  
Vol 397 (1-2) ◽  
pp. 112-114 ◽  
Author(s):  
W. Häussler ◽  
B. Gohla-Neudecker ◽  
R. Schwikowski ◽  
D. Streibl ◽  
P. Böni
Keyword(s):  
Spin Echo ◽  
Cold Neutrons ◽  
Resonance Spin

Developments in experimental neutron physics at the Institut Laue—Langevin

1980 ◽  
Vol 290 (1043) ◽  
pp. 673-681 ◽  
Keyword(s):  
High Resolution ◽  
Energy Resolution ◽  
Spin Echo ◽  
Bragg Diffraction ◽  
High Resolution Spectroscopy ◽  
Neutron Spectroscopy ◽  
Neutron Physics ◽  
Cold Neutrons ◽  
Recent Developments

A report and survey are given dealing with a variety of recent developments in neutron spectroscopy, diffraction and beam techniques, referring to work at the Institut Laue-Langevin. Subjects such as high resolution spectroscopy by 90° Bragg diffraction and spin echo analysis (leading to 10 -7 to 10 -8 eV energy resolution), spin polarizers, focusing crystals, modern multicounters, and methods dealing with neutrons of energies in the 10 -7 eV region (ultra-cold neutrons), are dealt with.

scholarly journals Influence of NaCl on the Structure and Dynamics of Phospholipid Layers

2021 ◽  
Vol 9 ◽  
Author(s):  
Sebastian Jaksch ◽  
Olaf Holderer ◽  
Henrich Frielinghaus ◽  
Alexandros Koutsioubas ◽  
Piotr Zolnierczuk ◽  
...  
Keyword(s):  
Spin Echo ◽  
Dynamical Behavior ◽  
Grazing Incidence ◽  
Dynamical Analysis ◽  
Neutron Spin ◽  
Head Group ◽  
Surface Mode ◽  
Neutron Spin Echo ◽  
Water Head ◽  
Multilayer Stacks

We present a structural and dynamical analysis of the influence of NaCl on multilayer stacks of phospholipids on a solid surface. To this end, multilayer stacks of phospholipids (L-α-phosphatidylcholine, abbreviated as SoyPC) are investigated with neutron reflectometry, grazing-incidence small-angle neutron scattering (GISANS) and grazing-incidence neutron-spin echo spectroscopy (GINSES). We show both that the NaCl influence on the structure is predominantly on water-head group interface and also, that the change in dynamics is restricted to an associated change in the inter-plane viscosity. Using this knowledge, it is possible to model the dynamical behavior of a phospholipid membrane in response to a salt concentration of the solvent using only a single parameter, namely the in-plane viscosity. The excellent agreement with our previously published model also strongly supports the existence of a thermally excited surface mode in phospholipid membranes for close-to-physiological conditions.

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