Spin-echo small-angle neutron scattering device: Test experiment using SiO2 colloidal particles

Author(s):  
E. V. Velichko ◽  
Yu. O. Chetverikov ◽  
L. A. Aksel’rod ◽  
V. N. Zabenkin ◽  
V. V. Piyadov ◽  
...  
2014 ◽  
Vol 47 (4) ◽  
pp. 1367-1373 ◽  
Author(s):  
Rana Ashkar ◽  
Roger Pynn ◽  
Robert Dalgliesh ◽  
Nickolay V. Lavrik ◽  
Ivan I. Kravchenko

The efficacy of spin-echo small-angle neutron scattering (SESANS) combined with an exact dynamical theory (DT) model in resolving the arrangement of spherical colloidal particles in planar confinements, such as the channels of a rectangular diffraction grating, is reported. SESANS data obtained with a suspension of charge-stabilized 180 nm silica particles in contact with a silicon diffraction grating, with ∼650 nm-wide channels, show clear deviations from the signal expected from a homogenous distribution of the suspension. DT fits to the data indicate that the colloidal particles are almost twice as concentrated in the channels as they are in the neighboring bulk suspension, consistent with a structure in which the particles are arranged in close-packed sheets parallel to the walls of the confining channels.


2005 ◽  
Vol 356 (1-4) ◽  
pp. 218-222 ◽  
Author(s):  
Timofey V. Kruglov ◽  
Wim G. Bouwman ◽  
Ignatz M. de Schepper ◽  
Theo M. Rekveldt

2003 ◽  
Vol 36 (3) ◽  
pp. 816-819 ◽  
Author(s):  
Timofei Krouglov ◽  
Wicher H. Kraan ◽  
Jeroen Plomp ◽  
M. Theo Rekveldt ◽  
Wim G. Bouwman

Soft Matter ◽  
2019 ◽  
Vol 15 (1) ◽  
pp. 17-21
Author(s):  
Gregory N. Smith ◽  
Victoria J. Cunningham ◽  
Sarah L. Canning ◽  
Matthew J. Derry ◽  
J. F. K. Cooper ◽  
...  

Concentrated dispersions of polymer nanoparticles with high contrast can be studied using SESANS in real space.


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