Nuclear Physics and Atomic Energy

ядерна ф≥зика та енергетика
Nuclear Physics and Atomic Energy

  ISSN: 1818-331X (Print), 2074-0565 (Online)
  Publisher: Institute for Nuclear Research of the National Academy of Sciences of Ukraine
  Languages: Ukrainian, English, Russian
  Periodicity: 4 times per year

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Nucl. Phys. At. Energy 2016, volume 17, issue 3, pages 226-231.
Section: Nuclear Physics.
Received: 14.07.2016; Accepted: 19.10.2016; Published online: 13.12.2016.
PDF Full text (ru)

Cross-section of the photoeffect averaged over the atomic electrons

S. N. Fedotkin*

Institute for Nuclear Research, National Academy of Sciences of Ukraine, Kyiv, Ukraine

*Corresponding author. E-mail address:

Abstract: Simple approximate method for calculation of the cross sections of the photoeffect averaged over all atomic electrons is suggested. This method is based on the statistical Thomas - Fermi model with a new additional assumption. The proposed approach allows to calculate rather simply the average probabilities of various processes with participation of all atomic electrons. For this purpose averaged density of the atomic electrons is calculated analytically. Good agreement between the total cross-sections for all atomic electrons calculated in the described approach and in the framework of the quantum mechanics is obtained.

Keywords: photoeffect, Thomas - Fermi model, atomic shell.


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