Photoionization and electron-impact ionization of Kr{sup 5+}

Journal Article · Sat Jul 15 04:00:00 EDT 2006 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.74.012703· OSTI ID:20852907

Lu, M; Gharaibeh, M F; Alna'washi, G; Phaneuf, R A; Kilcoyne, A L. D.; Levenson, E; Schlachter, A S; Mueller, A; Schippers, S; Jacobi, J; Scully, S W. J.; Cisneros, C ^[1]

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1. Department of Physics, MS 220, University of Nevada, Reno, Nevada 89557-0058 (United States)

Absolute photoionization cross sections for Kr{sup 5+} were measured in the photon energy range 74-175 eV using synchrotron radiation. For comparison, a detailed energy scan of the electron-impact ionization cross section was made in the same energy range and normalized to previously published absolute measurements. The Flexible Atomic Code and Cowan atomic structure code were used to calculate energy levels, excitation energies, and oscillator strengths for 3d{yields}np, 3d{yields}nf, and 4s{yields}np autoionizing transitions from the ground and metastable states. Within the experimental uncertainty, oscillator strengths determined from the photoionization measurements are in agreement with both calculations. Excitation-autoionization and resonant excitation-double-autoionization features are evident in the electron-impact ionization cross section.

• OSTI ID: 20852907
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 1 Vol. 74; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
AUTOIONIZATION
CATIONS
COMPARATIVE EVALUATIONS
CROSS SECTIONS
ELECTRON-ATOM COLLISIONS
ELECTRONS
EV RANGE
EXCITATION
GROUND STATES
KRYPTON
KRYPTON IONS
METASTABLE STATES
MULTICHARGED IONS
OSCILLATOR STRENGTHS
PHOTOIONIZATION
PHOTON-ATOM COLLISIONS
PHOTONS
SYNCHROTRON RADIATION