Bremsstrahlung of Fast Electrons Near Fano Resonance with Account for Polarization Channel

Authors

  • Frank B. Rosmej Sorbonne University, Faculty of Science and Engineering, UMR 7605, case 128, 4 Place Jussieu, F-75252 Paris Cedex 05, France; LULI, Ecole Polytechnique, CNRS-CEA, Physique Atomique dans les Plasmas Denses - PAPD, Route de Saclay, F-91128 Palaiseau Cedex, France; National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), Institute of Laser and Plasma Technologies, Plasma Physics Department, Kashirskoe sh. 31, Moscow 115409, Russia; Moscow Institute of Physics and Technology - MIPT, Institutskii per. 9, Dolgoprudnyi 141700, Russia
  • V. A. Astapenko Moscow Institute of Physics and Technology - MIPT, Institutskii per. 9, Dolgoprudnyi 141700
  • V. S. Lisitsa 3National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), Institute of Laser and Plasma Technologies, Plasma Physics Department, Kashirskoe sh. 31, Moscow 115409, Russia; Moscow Institute of Physics and Technology - MIPT, Institutskii per. 9, Dolgoprudnyi 141700, Russia; National Research Center "Kurchatov Institute”, Kurchatov sqr. 1, 123182 Moscow, Russia

DOI:

https://doi.org/10.26713/jamcnp.v4i1-3.769

Keywords:

Bremsstrahlung, Polarization Bremsstrahlung, Helium atom, Fano resonance

Abstract

We investigate the Bremsstrahlung originating from fast non-relativistic electron scattering on an atom in the spectral region near the Fano resonance including the polarization channel and interference term. It is shown that the account for polarization Bremsstrahlung leads to a significant increase of the total Bremstrahlung cross section near the Fano resonances. Numerical calculations are carried out for the first autoionization states 2l2l' of the Helium atom in the framework of the Born approximation that goes beyond the dipole approximation of the dynamic polarizability of the atom.

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References

V.N. Tsytovich and I.M. Oiringel (eds.), Polarization Bremsstrahlung, Springer (1992).

V. Astapenko, Polarization Bremsstrahlung on Atoms, Plasmas, Nanoscructures and Solids, Springer (2013).

A.V. Korol and A.V. Solov'yov, Polarization Bremsstrahlung, Springer (2014).

F.B. Rosmej, V.A. Astapenko and V.S. Lisitsa, XUV and x-ray elastic scattering of attosecond electromagnetic pulses on atoms, J. Phys. B 50, 235601 (2017).

U. Fano, Effects of configuration interaction on intensities and phase shifts, Phys. Rev. 124, 1866 (1961).

V.A. Astapenko and E.S. Khramov, Scattering of ultrashort electromagnetic pulses on fano resonance, International Review of Atomic and Molecular Physics 7 (2), 53 (2016).

J.A.R. Samson and W.C. Stolte, Precision measurements of the total photoionization cross-sections of He, Ne, Ar, Kr, and Xe, Journal of Electron Spectroscopy and Related Phenomena 123, 265 (2002).

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Published

2017-12-25
CITATION

How to Cite

Rosmej, F. B., Astapenko, V. A., & Lisitsa, V. S. (2017). Bremsstrahlung of Fast Electrons Near Fano Resonance with Account for Polarization Channel. Journal of Atomic, Molecular, Condensed Matter and Nano Physics, 4(1-3), 15–20. https://doi.org/10.26713/jamcnp.v4i1-3.769

Issue

Vol. 4 No. 1-3 (2017)

Section

Research Article

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