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Bremsstrahlung from collisions of low-energy electrons with positive ions in a magnetic field

  • Atoms, Molecules, Optics
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Abstract

Bremsstrahlung from electron-ion collisions in a magnetic field is studied for low energies at which the Larmor radius of an electron is smaller than the characteristic impact parameter of close collisions in zero magnetic field. It is shown that the magnetic field does not qualitatively change the bremsstrahlung power at low frequencies smaller than the reciprocal time of electron transit in the vicinity of an ion in close collision in zero magnetic field. At high frequencies, the radiation intensity decreases in accordance with a power law, attains its minimal value, and then increases in accordance with a power law up to frequencies on the order of the electron cyclotron frequency. At such frequencies, the spectral power attains typical power values in zero magnetic field. At frequencies lower than the cyclotron frequency considered here, bremsstrahlung is polarized predominantly linearly in the plane formed by the magnetic field and the direction of radiation.

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Authors and Affiliations

  1. Institute of Applied Physics, Russian Academy of Sciences, Nizhni Novgorod, 603950, Russia

    I. I. Bubukina & S. A. Koryagin

Authors
  1. I. I. Bubukina
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  2. S. A. Koryagin
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Correspondence to S. A. Koryagin.

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Original Russian Text © I.I. Bubukina, S.A. Koryagin, 2009, published in Zhurnal Éksperimental’noĭ i Teoreticheskoĭ Fiziki, 2009, Vol. 135, No. 6, pp. 1056–1067

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Bubukina, I.I., Koryagin, S.A. Bremsstrahlung from collisions of low-energy electrons with positive ions in a magnetic field. J. Exp. Theor. Phys. 108, 917–927 (2009). https://doi.org/10.1134/S1063776109060028

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  • DOI: https://doi.org/10.1134/S1063776109060028

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