Coster-Kronig yields in silver measured with synchrotron radiation

Sorensen, S. L.; Carr, R.; Schaphorst, Stephen J.; Whitfield, S. B.; Crasemann, Bernd

doi:10.1103/physreva.39.6241

Cited by 35 publications

(9 citation statements)

References 33 publications

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“…In order to get a more general view of the Z dependence for the f 13 yield in this Z region, the f 13 CK probabilities for Xe and the existing experimental results for neighboring elements Mo (Z = 42) [12], Pd (Z = 46) [15], and Ag (Z = 47) [12,24], and the recent results for Ba (Z = 56) [25] and La (Z = 57) [26] are compiled in Fig. 5 [2], the available experimental data for the neighboring elements, Mo [12], Pd [15], Ag [11,24], Ba [25], and La [26], and for Xe [14] to the adopted value, as well as to values with ( * ) and without (+) electron correlation corrections. The f LLN 13 denotes the Pd partial L 1 − L 3 N CK yield obtained in [15].…”

Section: Resultsmentioning

confidence: 99%

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Synchrotron-radiation-based determination of XeL-subshell Coster-Kronig yields: A reexamination via high-resolution x-ray spectroscopy

et al. 2010

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The xenon L-subshell Coster-Kronig (CK) transition yields were revisited via high-resolution measurements of the Lα 1,2 (L 3 − M 4,5 ) and Lβ 1 (L 2 − M 4 ) x-ray emission lines. The L x-ray spectra were measured employing a Johansson-type curved crystal spectrometer and energy-tunable synchrotron radiation. The CK yields were derived from the relative L x-ray intensity jumps at the L edges by fitting the fluorescence intensities as a function of the photon energy to the L-subshell photoionization cross sections. The latter were obtained from the measured L-edge photoabsorption spectrum. Values of 0.118 ± 0.029, 0.383 ± 0.037, and 0.096 ± 0.016 were found for the f 23 , f 13 , and f 12 CK yields, respectively. Thanks to high resolution, the L 1 fluorescence yield of 0.059 ± 0.002 was also determined from intensity ratios of the well-resolved Lβ 4 (L 1 − M 2 ) and Lβ 1 (L 2 − M 4 ) lines. PACS number(s): 32.70.−n, 32.80. Hd, 32.50.+d, 32.30.Rj

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Section: Resultsmentioning

confidence: 99%

“…This method has been successfully applied to determine CK yields for solids [9][10][11][12][13] as well as for Xe [14]. So far, most measurements of the x-ray fluorescence lines were performed by means of energy-dispersive semiconductor detectors.…”

Section: Introductionmentioning

confidence: 99%

Synchrotron-radiation-based determination of XeL-subshell Coster-Kronig yields: A reexamination via high-resolution x-ray spectroscopy

et al. 2010

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“…In 39Y, Jitschin, Grosse, and Rohl [9] found a ratio f&3 =0.49+0.09 which is remarkably smaller than the theoretical prediction of 0.747 reported by Chen, Crasemann, and Mark [5]. The same theoretical work overestimated the CK yield in silver [10], where f,z and f&3 were found to be smaller by 35%%uo and 18%, respectively. A similar trend of reduction, but of slightly better agreement with relativistic calculations, was found for various fz3 yields [11,12].…”

Section: Introductionmentioning

confidence: 79%

“…To date, however, it is beyond our computer facilities to explore such complex systems as 39Y or 47Ag for which measurements have been performed recently [9,10]. In these open-shell atoms, both the number of overlapping orbitals as well as the decay channels enlarged drastically.…”

Section: Coster-kronig Yieldsmentioning

confidence: 99%

ReducedL1level width and Coster-Kronig yields by relaxation and continuum interactions in atomic zinc

1992

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Calculations of the level width I' (L, ) and the f,z and f&3 Coster-Kronig yields for atomic zinc have been performed with Dirac-Fock wave functions. For I (L & ), a large deviation between theory and evaluated data exists. We include the incomplete orthogonality of the electron orbitals as well as the interchannel interaction of the decaying states. Orbital relaxation reduces the total rates in all groups of the electron-emission spectrum by about 10 -20%. Different, however, is the effect of the continuum interaction. The L &-L»X Coster-Kronig part of the spectrum is definitely reduced in its intensity, whereas the MM and MN spectra are slightly enhanced. This results in a reduction of Coster-Kronig yields, where for medium and heavy elements considerable discrepancies have been found in comparison to relativistic theory. Briefly, we discuss the consequences of our calculations for heavier elements.PACS number(s): 31. 20.Di, 32.80.Hd, 32.70.Fw

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“…In recent years, Synchrotron Radiation (SR) has been used to measure L-shell Coster-Kronig transition yields (Jitschin et al, 1989;Sorensen et al, 1989Sorensen et al, , 1991 (simply denoted as f~). In addition, Werner and Jitschin (Werner and Jitschin, 1988) have reported Coster-Kronig yields and ratios of fluorescence yields for L-shell in heavy atoms using the synchrotron photoionization method.…”

Section: Introductionmentioning

confidence: 99%