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Features of Channeling and Radiation of Relativistic Particles in Ionic Crystals with the Sodium-Chloride Structure

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Abstract—

The interaction potentials of charged particles with charged planes and axes in ionic crystals with the NaCl-type structure (in particular, in crystals of sodium, potassium, and rubidium halogenides) are calculated at a temperature of Т = 300 K. Moliere approximations are used in one-particle potentials of positively and negatively charged ions. Changes in the interaction-potential structures are also studied at elevated temperatures (for example, at 500 and 700 K) in the main and high-index directions. For relativistic electrons with Lorentz factors of γ = 50, 100 channeled along the principal charged (111) planes and also with a Lorentz factor of γ = 10 channeled along the principal charged [110] axes, the transverse energy levels and the wave functions corresponding to them are found numerically as a result of solving the corresponding Sturm—Liouville problems. For dispersionless electron beams moving at zero angles to the corresponding crystallographic planes and axes, in the dipole approximation, the spectra of spontaneous channeled radiation are calculated based on these data.

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Authors and Affiliations

  1. Taras Shevchenko Kyiv National University, 01601, Kyiv, Ukraine

    N. V. Maksyuta, V. I. Vysotskii, S. V. Efimenko & Y. A. Slinchenko

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  1. N. V. Maksyuta
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  2. V. I. Vysotskii
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  3. S. V. Efimenko
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  4. Y. A. Slinchenko
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Correspondence to N. V. Maksyuta.

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Translated by L. Kulman

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Maksyuta, N.V., Vysotskii, V.I., Efimenko, S.V. et al. Features of Channeling and Radiation of Relativistic Particles in Ionic Crystals with the Sodium-Chloride Structure. J. Surf. Investig. 15, 1109–1115 (2021). https://doi.org/10.1134/S1027451021050347

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