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Channeling 2014

5–10 Oct 2014
Capri-Naples, Italy
Europe/Rome timezone

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Session

S2: Channeling & Radiations in Various Fields

6 Oct 2014, 14:30
Capri-Naples, Italy

Capri-Naples, Italy

Conveners

S2: Channeling & Radiations in Various Fields

  • Anand Pathak (University of Hyderabad)

Description

Session 2.1

Presentation materials

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  1. 177. Electromagnetic processes at high energies with “half-bare” particles
    Prof. Nikolai Shul'ga (Akhiezer Institute for Theoretical Physics of NSC KIPT)
    06/10/2014, 14:30
    Invited talk
    In the present report a short review is given of last results on electromagnetic processes at high energies with “half-bare” particles such as transition radiation, Bremsstrahlung in a structured target, coherent radiation in ultrarelativistic crystals, ionization energy losses in a thin layer of matter, process of high energy electron-positron pairs production, etc. Considered are also some...
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  2. 122. Effective Mass of a Photon in Strong Fields
    Mr Valeriy Katkov (BINP)
    06/10/2014, 15:00
    Oral
    An effective mass of photon in a strong magnetic field of the same order or more than the Schwinger critical field is investigated. Obtained expressions include the singular terms with the root divergence at the thresholds of electron and positron creation on Landau levels. In high-energy range, when the number of thresholds is large, the quasiclassical approach is used. In this region the...
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  3. 45. Multiphoton Effects in Channeling Radiation
    Dr Micola Bondarenco (Kharkov Institute of Physics and Technology)
    06/10/2014, 15:15
    Oral
    Multiphoton spectra for channeling radiation are calculated based on techniques developed in [1], with the addition of averaging over charged particle impact parameters posterior to the calculation of the radiation straggling. Cases of planar and axial channeling in harmonic wells are considered, for which high photon multiplicity approximations for channeling radiation spectra are derived....
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  4. 98. Polarization Radiation from Metamaterials
    Dr Alexey Tishchenko (National Research Nuclear University "MEPhI")
    06/10/2014, 15:30
    Oral
    Left-handed metamaterials are known to demonstrate unusual optical properties, like negative refractive index, inverse Doppler effect, backward waves (the waves with contrary directed phase and group velocities), focusing beyond the diffraction limit. On the other hand, polarization radiation of charged particles has much in common with the processes of scattering of light in matter....
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  5. 112. Unknown Preconditions and Abnormal Features of Cherenkov Radiation and X-ray Laser Amplification in Realistic Media
    Prof. Vladimir Vysotskii (Kiev National Shevchenko Univ, Kiev, Ukraine)
    06/10/2014, 15:45
    Oral
    The influence of the spatial distribution of electrons, atoms and nuclei in condensed media on medium’s susceptibility and on the conditions of both X-ray Cherenkov radiation and laser X-ray (gamma-ray) generation are considered. It was shown that the “traditional” condition of Cherenkov radiation is incorrect and takes place only in idealized case of a completely homogenous medium without...
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