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On the Effect of Focusing of Coherent Diffraction Radiation by a Semi-Parabolic Target

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Abstract

Beam characteristics of a terahertz/subterahertz radiation obtained by collimation of coherent diffraction radiation (DR) emitted by ultrarelativistic electrons are considered. To achieve the maximum intensity on the beam axis of such radiation, it is proposed to use a semi-parabolic target with a focal length equal to the distance between the target and the collimator aperture. It is shown that for the proposed geometry, the DR distribution on the aperture plane has a maximum along the beam axis, in contrast to the previously used coherent transition radiation mechanism, which is characterized by a “funnel-shaped” structure with a minimum along the beam axis.

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Funding

The work was carried out with financial support from the Ministry of Science and Higher Education of the Russian Federation as part of the development program of Tomsk Polytechnic University no. FSWW-2023-0003.

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Authors and Affiliations

  1. Tomsk Polytechnic University, 634060, Tomsk, Russia

    A. P. Potylitsyn, A. V. Vukolov & M. V. Shevelev

  2. Joint Institute for Nuclear Research, 141980, Dubna, Russia

    A. A. Baldin, V. V. Bleko & V. V. Kobets

  3. John Adams Institute at Royal Holloway, University of London, Surrey TW20 0EX, Egham, UK

    P. V. Karataev

  4. Institute of Applied Problems of Physics of the National Academy of Sciences of the Republic of Armenia, Yerevan, Republic of Armenia

    V. R. Kocharyan

  5. MIREA–Russian Technological University, 119454, Moscow, Russia

    V. V. Bleko

  6. Institute for Advanced Study “OMEGA”, 141980, Dubna, Russia

    A. A. Baldin & V. V. Bleko

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  1. A. P. Potylitsyn
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  2. A. V. Vukolov
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  3. M. V. Shevelev
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  4. A. A. Baldin
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  5. V. V. Bleko
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  6. V. V. Bleko
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  7. V. V. Kobets
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  8. P. V. Karataev
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  9. V. R. Kocharyan
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Correspondence to V. V. Bleko.

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Potylitsyn, A.P., Vukolov, A.V., Shevelev, M.V. et al. On the Effect of Focusing of Coherent Diffraction Radiation by a Semi-Parabolic Target. Phys. Part. Nuclei Lett. 21, 140–145 (2024). https://doi.org/10.1134/S1547477124020122

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  • DOI: https://doi.org/10.1134/S1547477124020122

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