Formation of ions by high-energy photons

Journal Article · Thu Mar 15 00:00:00 EDT 2007 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.75.032717· OSTI ID:20982337

Drukarev, E G; Mikhailov, A I; Mikhailov, I A ^[1]; Rakhimov, Kh Yu ^[2]; Scheid, W ^[3]

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1. Petersburg Nuclear Physics Institute, Gatchina, St. Petersburg 188300 (Russian Federation)
2. Heat Physics Department of the Uzbek Academy of Sciences, Tashkent 700135 (Uzbekistan)
3. Justus-Liebig-Universitaet Giessen, Giessen 35392 (Germany)

We calculate the electron energy spectrum of ionization by a high-energy photon, accompanied by creation of an e{sup -}e{sup +} pair. The total cross section of the process is also obtained. The asymptotics of the cross section does not depend on the photon energy. At the photon energies exceeding a certain value {omega}{sub 0} this appears to be the dominant mechanism of formation of the ions. The dependence of {omega}{sub 0} on the value of nuclear charge is obtained. Our results are consistent with experimental data.

• OSTI ID: 20982337
• Journal Information: Physical Review. A, Vol. 75, Issue 3; Other Information: DOI: 10.1103/PhysRevA.75.032717; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ATOMIC NUMBER
COMPTON EFFECT
COMPUTER CALCULATIONS
ELECTRON-POSITRON INTERACTIONS
ELECTRONS
ENERGY SPECTRA
IONS
PHOTOIONIZATION
PHOTON-ATOM COLLISIONS
PHOTONS
POSITRONS
TOTAL CROSS SECTIONS