Electron-impact ionization of Se/sup 24+/

Journal Article · Wed Feb 15 00:00:00 EST 1989 · Phys. Rev. A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.39.1747· OSTI ID:6436931

Moores, D L; Reed, K J

Cross sections for electron-impact ionization of neonlike selenium have been calculated using close-coupling wave functions. We report cross sections for ionization of the 2s/sup 2/2p/sup 6/ /sup 1/S ground state and the 2s/sup 2/2p/sup 5/3s /sup 3/P excited state of the ion. We found numerous resonances in the ejected electron channels due to excitation of 2s/sup 2/2p/sup 4/3snl autoionizing states. The resonances are very narrow, but some have peaks that are several orders of magnitude above the nonresonant background cross section. Even with radiative decay taken into account, the resonances enhance the total integrated cross section by nearly a factor of 4.

• Research Organization: High Temperature Physics Division, Lawrence Livermore National Laboratory, Livermore, California 94550
• OSTI ID: 6436931
• Journal Information: Phys. Rev. A; (United States), Vol. 39:4
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
SELENIUM IONS
ELECTRON-ION COLLISIONS
AUTOIONIZATION
CROSS SECTIONS
EXCITED STATES
GROUND STATES
IONIZATION
RESONANCE
CHARGED PARTICLES
COLLISIONS
ELECTRON COLLISIONS
ENERGY LEVELS
ION COLLISIONS
IONS
640304* - Atomic
Molecular & Chemical Physics- Collision Phenomena