Onset and near threshold evolution of the Cu {ital K}{bold {alpha}} x-ray satellites

Journal Article · Mon Apr 01 04:00:00 EST 1996 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.76.2424· OSTI ID:286090

Deutsch, M; Gang, O; Haemaelaeinen, K; Kao, C C ^[1]

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1. Physics Department, Bar-Ilan University, Ramat-Gan 52900 (Israel)

The evolution of the Cu {ital K}{alpha}{sub 3,4} spectrum is studied from threshold to saturation using synchrotron radiation photoexcitation. A pure shake-off behavior is observed, with a smooth and monotonic intensity rise from zero to saturation, confirming theoretical predictions. Different onset energies are observed for the spectral features, but the {ital shape} of the spectrum is found to be invariant for energies higher than 50 eV above threshold. Full-spectrum fits based on {ital ab} {ital initio} Dirac-Fock calculations and measured onset energies conclusively show the satellites to result from 2{ital p} spectator transitions only, as predicted. {copyright} {ital 1996 The American Physical Society.}

• Research Organization: Brookhaven National Laboratory
• DOE Contract Number: AC02-76CH00016
• OSTI ID: 286090
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 14 Vol. 76; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
COPPER
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
K SHELL
P STATES
THRESHOLD ENERGY
X-RAY SPECTRA