Correlative multielectron processes in K-shell photoionization of Ca, Ti and V in the energy range of 8-35 keV
(2002) In Journal of Physics B: Atomic, Molecular and Optical Physics 35(18). p.3847-3863- Abstract
- The Kalpha satellite spectra arising from the correlative multielectron processes accompanying K-shell photoionization of Ca, Ti and V were measured using a broad range crystal spectrometer. Multiconfiguration Dirac-Fock calculations were performed to interpret the observed,x-ray energies and the spectral line shape., The calculations agree fairly well with the experimental results. The variation of the KalphaL(1) satellite and the Kalpha(1,2)(h) hypersatellite intensities was measured as a function, of excitation energy in the range of 8-35 keV. The KalphaL(1)/Kalpha(1,2) intensity ratio for each,element is already saturated in our energy range, and the asymptotic values of 1.58 +/- 0.08, 1.26 +/- 0.06 and 0.97 +/- 0.05% for Ca, Ti. and V... (More)
- The Kalpha satellite spectra arising from the correlative multielectron processes accompanying K-shell photoionization of Ca, Ti and V were measured using a broad range crystal spectrometer. Multiconfiguration Dirac-Fock calculations were performed to interpret the observed,x-ray energies and the spectral line shape., The calculations agree fairly well with the experimental results. The variation of the KalphaL(1) satellite and the Kalpha(1,2)(h) hypersatellite intensities was measured as a function, of excitation energy in the range of 8-35 keV. The KalphaL(1)/Kalpha(1,2) intensity ratio for each,element is already saturated in our energy range, and the asymptotic values of 1.58 +/- 0.08, 1.26 +/- 0.06 and 0.97 +/- 0.05% for Ca, Ti. and V were determined. By combining the present results and the previously measured values for various elements, we have found a Z(-3.5) scaling law for the KalphaL(1)/Kalpha(1,2) intensity ratio, The measured Kalpha(1,2)(h)/Kalpha(1,2) for each element, is found to increase smoothly from its onset and shows a long saturation range extending up to at least 25 keV above the threshold for Ti. The evolution of the Kalpha(1,2)(h)/Kalpha(1,2) intensity ratio is compared with the analytic Thomas model and with the theoretical calculation based on the screened hydrogenic model. (Less)
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- author
- organization
- publishing date
- 2002
- type
- Contribution to journal
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- published
- subject
- in
- Journal of Physics B: Atomic, Molecular and Optical Physics
- volume
- 35
- issue
- 18
- pages
- 3847 - 3863
- publisher
- IOP Publishing
- external identifiers
-
- wos:000178714500007
- scopus:0037190591
- ISSN
- 0953-4075
- DOI
- 10.1088/0953-4075/35/18/305
- language
- English
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- yes
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- 7abf6d20-eef1-47ec-98e2-1b073b2caca4 (old id 324924)
- date added to LUP
- 2016-04-01 15:31:35
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- 2024-01-10 16:19:42
@article{7abf6d20-eef1-47ec-98e2-1b073b2caca4,
abstract = {{The Kalpha satellite spectra arising from the correlative multielectron processes accompanying K-shell photoionization of Ca, Ti and V were measured using a broad range crystal spectrometer. Multiconfiguration Dirac-Fock calculations were performed to interpret the observed,x-ray energies and the spectral line shape., The calculations agree fairly well with the experimental results. The variation of the KalphaL(1) satellite and the Kalpha(1,2)(h) hypersatellite intensities was measured as a function, of excitation energy in the range of 8-35 keV. The KalphaL(1)/Kalpha(1,2) intensity ratio for each,element is already saturated in our energy range, and the asymptotic values of 1.58 +/- 0.08, 1.26 +/- 0.06 and 0.97 +/- 0.05% for Ca, Ti. and V were determined. By combining the present results and the previously measured values for various elements, we have found a Z(-3.5) scaling law for the KalphaL(1)/Kalpha(1,2) intensity ratio, The measured Kalpha(1,2)(h)/Kalpha(1,2) for each element, is found to increase smoothly from its onset and shows a long saturation range extending up to at least 25 keV above the threshold for Ti. The evolution of the Kalpha(1,2)(h)/Kalpha(1,2) intensity ratio is compared with the analytic Thomas model and with the theoretical calculation based on the screened hydrogenic model.}},
author = {{Oura, M and Yamaoka, H and Kawatsura, K and Takahiro, K and Takeshima, N and Zou, YM and Hutton, Roger and Ito, S and Awaya, Y and Terasawa, M and Sekioka, T and Mukoyama, T}},
issn = {{0953-4075}},
language = {{eng}},
number = {{18}},
pages = {{3847--3863}},
publisher = {{IOP Publishing}},
series = {{Journal of Physics B: Atomic, Molecular and Optical Physics}},
title = {{Correlative multielectron processes in K-shell photoionization of Ca, Ti and V in the energy range of 8-35 keV}},
url = {{http://dx.doi.org/10.1088/0953-4075/35/18/305}},
doi = {{10.1088/0953-4075/35/18/305}},
volume = {{35}},
year = {{2002}},
}