Conveners
X–ray and neutron scattering in crystals
- Sultan Dabagov (INFN Laboratori di Frascati)
X–ray and neutron scattering in crystals
- Artak Mkrchyan (Institute of Applied Problems of Physics (IAPP) NAS RA)
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Vahan Kocharyan21/09/2023, 09:00Oral
The characteristics of the redistribution of the intensities of passed and reflected X-rays by the Laue geometry of diffraction from the family of planes of a quartz crystal (101 ̅1) depending on the thickness of the single crystal and the magnitude of the temperature gradient were experimentally studied. In particular, the behavior of the interference absorption coefficient of X-rays...
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Dr Anton Kulikov (FSRC Crystallography and photonics RAS)21/09/2023, 09:20Oral
Our scientific group based on the Laboratory of X-ray Methods of Analysis and Synchrotron Radiation of FSRC “Crystallography and Photonics” RAS specializes in the research of crystalline materials under external influences of various nature and their combinations: constant, alternating and pulsed electric and magnetic fields, laser illumination and heating, mechanical and ultrasonic...
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Yan Eliovich (FSRC "Crystallography and photonics" RAS)21/09/2023, 09:40Oral
Crystalline materials are a key element of the modern microelectronics industry. Often, elements and devices manufactured on their basis operate under conditions of external influences that have a significant impact on their functional characteristics, up to complete failure. Therefore, one of the urgent problems of modern materials science is the study of the structure evolution of promising...
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Mr Karapet Trouni (Institute of Applied Problems Physics)21/09/2023, 10:00Oral
Analytical solutions are constructed for the wave functions of diffracted X-ray and slow neutron waves in crystals with a lattice deformation field. An integral form is formulated for determining the quasi-amplitudes of diffracted waves in the framework of the initial spatially inhomogeneous beams, based on the constructed functions of the influence of a point source of X-ray and neutron...
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Nikita Snegirev (Shubnikov Institute of Crystallography of FSRC “Crystallography and Photonics” Russian Academy of Sciences, 119333, Moscow, Russia Kurchatov Complex for Synchrotron and Neutron Investigations, NRC «Kurchatov institute», 123182, Moscow, Russia)21/09/2023, 10:20Oral
In this report the influence of the magnetic domain structure and the effects of surface magnetism on the perfection of crystalline materials and their diffraction characteristics will be discussed. The canted antiferromagnet FeBO3 was used as a model crystal due to its anomalously strong magnetoelastic interaction.
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To carry out the experiments, a synchrotron technique for X-ray diagnostics... -
Fedor Pilyak (FSRC "Crystallography and Photonics" RAS)21/09/2023, 11:00Oral
Control of the ordered systems properties can be effectively implemented through deformations formed by various external influences, for example, electric fields, laser radiation or their combination. In a number of cases, crystals are sensitive to both types of influences, which, on the one hand, makes them promising materials within straintronics purposes, and, on the other hand, complicates...
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A. Lobko21/09/2023, 11:20Oral
New technologies invite researchers and developers to be creative, enabling them to consider theories and approaches which have thus far remained undeveloped. In our contribution we will introduce some considerations regarding involvement of new kind materials and possibility their dendrite structure to the research in field of physics of high-energy radiations.
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First, we will consider... -
Anton Safonov (National Research Center "Kurchatov Institute")21/09/2023, 11:40Oral
It is assumed to develop new class of XSW methods in the «normal incidence – grazing exit» geometry using optical reciprocity principle. The complex structure of the fluorescent signal, measured in grazing angles (an analogue of the Kossel effect), will be used for determination of the atoms distribution profiles in layered systems or atomic positions in the crystal lattice, receiving...
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Samvel Mkhitatyan (Institute of applied problems of physics NAS RA)21/09/2023, 12:00Oral
The paper presents a new method for revealing the fine structure of defocusing patterns that appear in three-block interferometers and the results of the corresponding studies. Three-unit defocused interferometers without a thick analyzer block, with a thick analyzer block and with a separate thick block (enlarger) are designed, manufactured and tested. It is shown that fine structures of...
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Majid Ali21/09/2023, 12:20Oral
Development of advanced intense and reliable sources of charged particle beams is a direction within accelerator physics on its own right. By changing the temperature of Lithium Tantalate (LiTaO3) single crystal at moderate vacuum conditions leads to generation of strong electric field. The uncompensated polarization during the heating or cooling of the crystal causes the ejection of electrons...
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Stefano Mazzoni (CERN)Invited