Diagram, valence-to-core, and hypersatellite Kβ X-ray transitions in metallic chromium
- Zeeshan, Faisal Department of Physics
- Hoszowska, Joanna Department of Physics
- Dousse, Jean-Claude Department of Physics
- Sokaras, Dimosthenis Stanford Synchrotron Radiation Lightsource
- Weng, Tsu-Chien Stanford Synchrotron Radiation Lightsource
- Alonso-Mori, Roberto Linac Coherent National Accelerator Laboratory
- Kavčič, Matjaz Jožef Stefan Institute
- Guerra, Mauro Laboratório de Instrumentação, Engenharia Biomédica e Física da Radiação (LIBPhys-UNL), Departamento de Física, Faculdade de Ciências e Tecnologia
- Sampaio, Jorge Miguel Space Radiation Environments
- Parente, Fernando Laboratório de Instrumentação, Engenharia Biomédica e Física da Radiação (LIBPhys-UNL), Departamento de Física, Faculdade de Ciências e Tecnologia
- Indelicato, Paul Laboratoire Kastler Brossel
- Marques, José Pires BioISI-Biosystems and Integrative Sciences Institute
- Santos, José Paulo Laboratório de Instrumentação, Engenharia Biomédica e Física da Radiação (LIBPhys-UNL), Departamento de Física, Faculdade de Ciências e Tecnologia
-
01.09.2019
Published in:
- X-Ray Spectrometry. - 2019, vol. 48, no. 5, p. 351–359
English
We report on measurements of the Kβ diagram, valence‐to‐core (VtC), and hypersatellite X‐ray spectra induced in metallic Cr by photon single and double K‐shell ionization. The experiment was carried out at the Stanford Synchrotron Radiation Lightsource using the seven‐crystal Johann‐type hard X‐ray spectrometer of the beamline 6‐2. For the Kβ diagram and VtC transitions, the present study confirms the line shape features observed in previous works, whereas the Khβ hypersatellite transition was found to exhibit a complex spectral line shape and a characteristic low‐ energy shoulder. The energy shift of the hypersatellite relative to the parent diagram line was deduced from the measurements and compared with the result of extensive multiconfiguration Dirac–Fock (MCDF) calculations. A very good agreement between experiment and theory was found. The MCDF calculations were also used to compute the theoretical line shape of the hypersatellite. A satisfactory agreement was obtained between the overall shapes of the experimental and theoretical spectra, but deviations were observed on the low‐ and high‐energy flanks of the hypersatellite line. The discrepancies were explained by chemical effects, which were not considered in the MCDF calculations performed for isolated atoms.
- Faculty
- Faculté des sciences et de médecine
- Department
- Département de Physique
- Language
-
- English
- Classification
- Physics
- License
- License undefined
- Identifiers
-
- RERO DOC 327182
- DOI 10.1002/xrs.3019
- Persistent URL
- https://folia.unifr.ch/unifr/documents/308151
Statistics
Document views: 45
File downloads:
- dou_dvh.pdf: 92