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Formation of ions by high energy photons

E. G. Drukarev·A. I. Mikhailov·I. A. Mikhailov·Kh. Yu. Rakhimov·W. Scheid
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Abstract

We calculate the electron energy spectrum of ionization by a high energy photon, accompanied by creation of electron-positron pair. The total cross section of the process is also obtained. The asymptotics of the cross section does not depend on the photon energies. At the photon energies exceeding a certain value $\omega_0$ this appeares to to be the dominant mechanism of formation of the ions. The dependence of $\omega_0$ on the value of nuclear charge is obtained. Our results are consistent with experimental data.

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E. G. Drukarev, A. I. Mikhailov, I. A. Mikhailov, Kh. Yu. Rakhimov, W. Scheid. 2006-10-28. Formation of ions by high energy photons. https://doi.org/10.1103/physreva.75.032717

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