Evolution of the SONIX Software Package for the YuMO Spectrometer at the ИБР-2 Reactor

Kirilov, A. S.; Литвиненко, Е. И.; Astakhova, N. V.; Murashkevich, S. M.; Petukhova, T. B.; Yudin, Victor; Gordelii, V. I.; Исламов, А. Х.; Куклин, А. И.

doi:10.1023/b:inet.0000032899.51622.1e

Cited by 16 publications

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“…In accordance with previous data [4][5][6][7][8], water absorption by soil samples increases the average distance between monomeric colloid particles that constitute fractal clusters. Our results show that the specific content of colloid particles in moist soils is lower than in air-dry soils.…”

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confidence: 90%

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Fractal Structures of Soil Colloids

et al. 2005

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confidence: 90%

“…Since a two-detector system was used ( Fig. 1), the range (as well as the dynamic range) of the scattering vector magnitude Q ran from 0.007 to 0.6 Å -1 for neutron wavelengths from 0.7 to 5 Å and detectorsample distances of 3.6 and 12.97 m for the nearer and the farther detectors, respectively [7,8].…”

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Fractal Structures of Soil Colloids

et al. 2005

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“…SANS measurements were performed on the time-of-flight YuMO spectrometer (JINR, Dubna, Russia) with two detector modes [22] in function at the IBR-2 high-flux pulsed reactor (JINR Dubna). The SONIX + software system (Version 2017, JINR, Dubna, Russia) controlled the spectrometer [23]. Experiments were carried out at a sample-to-detector distance of 5.28 and 13.04 m, resulting in a Q range of 0.006-0.06 A −1 .…”

Section: Characterization Methodsmentioning

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Synthesis and Characterization of Complex Nanostructured Thin Films Based on Titanium for Industrial Applications

et al. 2020

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Titanium-based composites—titanium and silver (TiAg) and titanium and carbon (TiC)—were synthesized by the Thermionic Vacuum Arc (TVA) method on substrates especially for gear wheels and camshaft coating as mechanical components of irrigation pumps. The films were characterized by surface morphology, microstructure, and roughness through X-ray Diffraction (XRD), Atomic Force Microscopy (AFM), Scanning Electron Microscopy (SEM), Transmission Electron Microscopy (TEM), and Small-Angle Neutron Scattering (SANS). The silver (Ag) films crystallized into a cubic system with lattice a = 4.0833 Å at room temperature, indexed as cubic Ag group Fm3m. The crystallites were oriented in the [111] direction, and mean grain size was <D>111 = 265 Å. The TiC structure revealed a predominant cubic TiC phase, with a = 0.4098 as a lattice parameter determined by Cohen’s method. Average roughness (Ra) was 8 nm for the as-grown 170 nm thick TiAg film, and 1.8 nm for the as-grown 120 nm thick TiC film. Characteristic SANS contribution was detected from the TiAg layer deposited on a substrate of high-quality stainless steel with 0.45% carbon (OLC45) in the range of 0.015 Å−1 ≤ Q ≤ 0.4 Å−1, revealing the presence of sharp surfaces and an averaged triaxial ellipsoidal core-shell object.

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“…SANS Measurements. SANS experiments were performed with the YuMO instrument using the two-detector system of the high-flux pulsed reactor IBR-2 at Frank Laboratory of Neutron Physics, Joint Institute for Nuclear Research, Dubna, Russia. Sample holders were specially designed homemade dismountable disklike quartz cells with a diameter of 2 cm and a path length of 2 mm.…”

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Effect of the Mobility of Charged Units on the Microphase Separation in Amphiphilic Polyelectrolyte Hydrogels

et al. 2005

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The effect of the migration of charged units on the structure of hydrophobically modified polyelectrolyte gels swollen by D(2)O was studied by small-angle neutron scattering on an example of gels of terpolymers of acrylic acid, n-dodecylacrylate, and 2-acrylamido-2-methyl-1-propanesulfonic acid (quenched charged units) and gels of copolymers of partially neutralized acrylic acid and n-dodecylacrylate (annealed charged units). The content of charged units did not exceed 20 mol %, so that the electrostatic repulsion was too weak to disrupt the hydrophobic domains formed by self-assembled n-dodecyl chains, which was evidenced by NMR data. It was shown that upon increasing the charge content both types of gels undergo microphase separation with the formation of hydrophobic clusters consisting of several densely packed hydrophobic domains and hydrophilic regions swollen by water, where most of the charged repeat units and counterions are located. The dimensions of the nanostructure of the gels with quenched and annealed charged groups were compared. It was shown that the size of clusters in the gels with annealed charged units is much bigger than that in the gels with the same fraction of quenched charged units. This effect was attributed to a much weaker electrostatic repulsion in the corona of the hydrophobic clusters in the gels with annealed charged groups, because the charged units repelling each other are able to move farther apart.

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Evolution of the SONIX Software Package for the YuMO Spectrometer at the ИБР-2 Reactor

Cited by 16 publications

References 0 publications

Fractal Structures of Soil Colloids

Fractal Structures of Soil Colloids

Synthesis and Characterization of Complex Nanostructured Thin Films Based on Titanium for Industrial Applications

Effect of the Mobility of Charged Units on the Microphase Separation in Amphiphilic Polyelectrolyte Hydrogels

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