Triple Coincidence (e, γ2e) Experiment for Simultaneous Electron Impact Ionization Excitation of Helium

Sakhelashvili, G; Dorn, Alexander R; Hohr, C; Ullrich, Joachim; Kheifets, Anatoli; Lower, Julian; Bartschat, Klaus R

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Triple Coincidence (e, γ2e) Experiment for Simultaneous Electron Impact Ionization Excitation of Helium

Date

2005

Authors

Sakhelashvili, G

Dorn, Alexander R

Hohr, C

Ullrich, Joachim

Kheifets, Anatoli

Lower, Julian

Bartschat, Klaus R

Publisher

American Physical Society

Abstract

Simultaneous ionization and excitation of helium atoms by 500 eV electron impact is observed by a triple coincidence of an ionized slow electron, the recoiling He+ ion, and the radiated vacuum ultraviolet photon (λ≤30.4nm). Kinematically complete diffe