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Channeling 2023

4–9 Jun 2023
Hotel Corallo, Riccione
Europe/Rome timezone

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Session

S2: Radiation: Generation & Interaction

6 Jun 2023, 11:10
Hotel Corallo, Riccione

Hotel Corallo, Riccione

Viale Gramsci, 113 - Riccione (RN)

Conveners

S2: Radiation: Generation & Interaction: Session 2.2

  • Giovanni Mazzitelli (Istituto Nazionale di Fisica Nucleare)

Presentation materials

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  1. 55. From Bremsstrahlung to Channeling Radiation. A Promising Way for Positron Generation
    Robert Chehab
    06/06/2023, 11:10
    invited

    Crystal effects and especially channeling radiation are interesting, instead of bremsstrahlung, to provide a large number of photons,for positron generation in converters This work is describing the choice , more and more, spread , of axially oriented crystals in channeling conditions to provide such amount of photons . Emphasis is put on a particular scheme, the hybrid source, associating a...

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  2. 51. ADVANTAGES OF HYBRID POSITRON SOURCES WITH GRANULAR CONVERTERS
    Robert CHEHAB
    06/06/2023, 11:40
    oral

    Hybrid positron sources using a crystal axially oriented as a photon radiator followed by an amorphous converter are promising for the yields as for the behaviour with thermal stresses. Emphasis is put on the advantages of using a granular converter made of small spheres instead of a bulk material for the photon conversion into e+e- pairs.

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  3. 61. Experimental Demonstration of Super-radiant Emission of Coherent Cherenkov Diffraction Radiation
    Pavel Karataev
    06/06/2023, 12:00
    oral

    Recent years have witnessed an intense development of accelerator-based sources generating radiation from radiowaves to hard X-rays. Intense electromagnetic radiation in the far‐infrared spectral range is an advanced tool for scientific research in biology, chemistry, and material science because many materials leave signatures in the radiation spectrum. Monochromatic lines in the spectrum...

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  4. 11. Radiation of Surface Polaritons in Cylindrical Channels
    Vardazar Kotanjyan
    06/06/2023, 12:20
    oral

    We investigate the radiation of surface polaritons by a charged particle
    moving parallel to the axis of a dielectric cylinder immersed in homogeneous
    medium. Both the cases of the charge motion inside and outside the
    cylinder are discussed. The electromagnetic fields in the exterior
    and interior media are evaluated by using the Green tensor. The parts
    in the fields corresponding to...

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  5. 65. PYROELECTRIC ELECTRON BEAM DEFLECTOR AND UNDULATOR
    Alexander Shchagin
    06/06/2023, 12:40
    oral

    A.V. Shchagin

    Deutsches Elektronen-Synchrotron DESY, Notkestrasse 85, 22607 Hamburg, Germany
    Kharkov Institute of Physics and Technology, Academicheskaya 1, Kharkiv 61108, Ukraine

    e-mail: alexander.shchagin@desy.de

    Deflection of a relativistic electron beam by means of the pyroelectric deflector is demonstrated experimentally for the first time [1]. The operating principle of the...

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