Resonant effects on electron-impact ionization of sodiumlike selenium

Journal Article · Sun Oct 01 00:00:00 EDT 1995 · Physical Review A

DOI:https://doi.org/10.1103/PhysRevA.52.2881· OSTI ID:118453

Chen, M H; Reed, K J; McWilliams, D M ^[1]

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1. University of California, Lawrence Livermore National Laboratory, Livermore, California 94550 (United States)

We have calculated the resonant-excitation-double-autoionization (REDA) cross sections for sodiumlike selenium. The REDA process is treated as a three-step process (i.e., resonant electron capture followed by sequential double Auger emission). The necessary atomic data are computed using the multiconfiguration Dirac-Fock model. The effects of radiative damping can reduce the calculated REDA cross sections by a factor of 6, and the loss channels can further reduce these cross sections by a factor of 2. The REDA processes produce many strong narrow resonances and contribute 10--20 % to the average total ionization cross sections.

• Research Organization: Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 118453
• Journal Information: Physical Review A, Vol. 52, Issue 4; Other Information: PBD: Oct 1995
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
SELENIUM IONS
IONIZATION
ELECTRON-ION COLLISIONS
SELENIUM
RESONANCE
AUGER EFFECT
CROSS SECTIONS