Spectator-electron behavior during cascade decay in krypton

Journal Article · Tue Jun 01 00:00:00 EDT 2004 · Physical Review. A

DOI:https://doi.org/10.1103/PhysRevA.69.062710· OSTI ID:20643764

Armen, G B; Levin, J C ^[1]; Kanter, E P; Kraessig, B; Southworth, S H; Young, L ^[2]

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1. Department of Physics, University of Tennessee, Knoxville, Tennessee 37996 (United States)
2. Argonne National Laboratory, Argonne, Illinois 60439 (United States)

We report new measurements of Kr{sup q+} photo-ions, coincident with K{alpha} or K{beta} fluorescence as incident-photon energy is swept through the Kr K-shell threshold. From the branching ratios just above threshold, we obtain measurements of the ion charge-state probabilities for decay from the Kr [2p] and Kr [3p] states. In the threshold region, we observe both resonant enhancement and depletion of the branching ratios. By analyzing this behavior in light of theory, we extract sticking probabilities, which we feel are a useful set of parameters for investigating the general relationship between cascade decay from resonant and nonresonant hole states. A simplified theoretical model is employed to calculate these probabilities for the Kr{sup 2+} and Kr{sup 3+} cases.

• OSTI ID: 20643764
• Journal Information: Physical Review. A, Vol. 69, Issue 6; Other Information: DOI: 10.1103/PhysRevA.69.062710; (c) 2004 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
BRANCHING RATIO
CATIONS
CHARGE STATES
DECAY
ELECTRONS
FLUORESCENCE
HOLES
K SHELL
KRYPTON
KRYPTON IONS
P STATES
PHOTONS
PROBABILITY