Conveners
5. Coherent Bremsstrahlung and Channeling Radiation
- Alexander Shchagin (Kharkov Institute of Physics and Technology)
105.
Status and Perspectives for Channeling Physics: from Crystal Undulators to Capillary Waveguides
Sultan Dabagov
(INFN Laboratori Nazionali di Frascati, 00044 Frascati (RM), Italy RAS P.N. Lebedev Physical Institute, Moscow, Russia National Research Nuclear University MEPhI, Moscow, Russia)
08/09/2015, 11:30
5. Coherent Bremsstrahlung and Channeling Radiation
Invited
Channeling is the phenomenon well-known in the world mostly related to the propagation of the beams of charged particles in aligned crystals. However, recent studies have shown the feasibility of channeling phenomenology application for description of other various mechanisms of interaction of charged as well as neutral particles beams in solids, plasmas and electromagnetic fields covering the...
Mr
Giacomo Germogli
(University of Ferrara and INFN section of Ferrara (Italy))
08/09/2015, 12:00
5. Coherent Bremsstrahlung and Channeling Radiation
Oral
Electromagnetic radiation emitted by channeled and volume reflected sub-GeV electrons in a bent crystal was measured at MAMI (Germany). A 855 MeV electron beam hit a mechanically bent 30.5 μm thick Si crystal. Crystallographic directions and holder design are optimized to excite quasi-mosaic effect of the (111) planes, while thickness was reduced down to the order of the dechanneling length...
Dr
Vahram Parazian
(Institute of Applied Problems in Physics NAS RA)
08/09/2015, 12:15
5. Coherent Bremsstrahlung and Channeling Radiation
Oral
A.R. Mkrtchyan, V.V. Parazian, A.A. Saharian
Institute of Applied Problems in Physics NAS RA
25 Nersessian Street, 0014 Yerevan, Armenia
We investigate the coherent bremsstrahlung from electrons moving at small angles with respect to a deformed graphene sheet. For an arbitrary periodical deformation of the sheet, a formula is derived for the corresponding cross-section as a function of...
Mikhail Mazuritskiy
(Southern Federal University)
08/09/2015, 12:30
5. Coherent Bremsstrahlung and Channeling Radiation
Oral
Propagation of X-rays through microcapillaries is a phenomenon of great interest due to the high efficiency in the transport of the radiation by microcapillary holes and, as consequence, due to the possibility to design new optical elements suitable to shape an intense x-ray beam. Actually, because the technology based on the capillary optical elements can deliver a high flux density within a...
Dr
Yuri Krotov
(Joint -Stock Company "POLYUS Research Institute of M. F. Stelmakh", Russia, 117342 Moscow, Vvedenskogo 3, kor.1)
08/09/2015, 12:45
5. Coherent Bremsstrahlung and Channeling Radiation
Oral
The presentation is devoted to theoretical analysis of Polarization Bremsstrahlung (PBrS) [1] due to the scattering of fast electrons on metallic nanosphere embedded in dielectric matrix in frequency region near dipole and quadrupole plasmon resonances. Here we account for plasmonic interference effects which arise in frequency-angular distribution of PBrS. These effects are the consequence of...
Koryun Gevorgyan
(Yerevan State University)
08/09/2015, 13:00
5. Coherent Bremsstrahlung and Channeling Radiation
Oral
In the present work investigated the problem of radiation of positron bunch in the system of the packed nanotubes. In this work used model of the harmonic potential which is justified since on the one hand the number of positrons near the axis of the nanotubes region is small, and on the other hand their contribution to the formation of the total radiation is also small. The problem is solved...
