Photoionization of excited highly charged ions

Conference · Sat Jun 05 04:00:00 EDT 1993 · AIP Conference Proceedings (American Institute of Physics); (United States)

OSTI ID:5518245

Avdonina, N; Pratt, R H ^[1]; Chernysheva, L ^[2]

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1. University of Pittsburgh, Pittsburgh, Pennsylvania 15260 (United States)
2. St. Petersburg Institute for Informatics and Automation, St. Petersburg 199178 (Russian Federation)

We show that even for highly charged excited ions, not just for neutral excited atoms or low charged excited ions, autoionizing resonances connected with discrete inner-shell excitations can lie close to (above or below) the photoionization threshold of the excited electron. This leads to a nonmonotonic dependence of the near-threshold photoionization cross section on photon energy, as the location and shapes of these autoionizing resonances very strongly affect the behavior of the cross section.

• OSTI ID: 5518245
• Report Number(s): CONF-920948--
• Conference Information: Journal Name: AIP Conference Proceedings (American Institute of Physics); (United States) Journal Volume: 274:1
• Country of Publication: United States
• Language: English

Related Subjects

664200* -- Spectra of Atoms & Molecules & their Interactions with Photons-- (1992-)
74 ATOMIC AND MOLECULAR PHYSICS
ATOMS
AUTOIONIZATION
CHARGED PARTICLES
ENERGY
ENERGY LEVELS
EXCHANGE INTERACTIONS
EXCITED STATES
INTERACTIONS
IONIZATION
IONS
ISOELECTRONIC ATOMS
MULTICHARGED IONS
PHOTOIONIZATION
RANDOM PHASE APPROXIMATION
THRESHOLD ENERGY