Kh a 1,2 hyperesatellites of 3d transition metals and their photoexcitation energy dependence.

Journal Article · Thu Jun 25 04:00:00 EDT 2009 · Physical Review A

DOI:https://doi.org/10.1103/PhysRevA.79.062511· OSTI ID:1041110

Diamant, R; Kao, C; Huotari, S; Hamalainen, K; Sharon, R; Deutsch, M

Hollow atoms in which the K shell is empty while the outer shells are populated allow studying a variety of important and unusual properties of atoms. The diagram x-ray emission lines of such atoms, the K{sup h} {alpha}{sub 1,2} hypersatellites (HSs), were measured for the 3d transition metals, Z = 23-30, with a high energy resolution using photoexcitation by monochromatized synchrotron radiation. Good agreement with ab initio relativistic multiconfigurational Dirac-Fock calculations was found. The measured HS intensity variation with the excitation energy yields accurate values for the excitation thresholds, excludes contributions from shake-up processes, and indicates domination near threshold of a nonshake process. The Z variation of the HS shifts from the diagram line K{alpha}{sub 1,2}, the K{sup h}{alpha}{sub 1}-K{sup h}{alpha}{sub 2} splitting, and the K{sup h}{alpha}{sub 1}/K{sup h}{alpha}{sub 2} intensity ratio, derived from the measurements, are also discussed with a particular emphasis on the QED corrections and Breit interaction.

• Research Organization: BROOKHAVEN NATIONAL LABORATORY (BNL)
• Sponsoring Organization: USDOE SC OFFICE OF SCIENCE (SC)
• DOE Contract Number: AC02-98CH10886
• OSTI ID: 1041110
• Report Number(s): BNL--90325-2009-JA; KC0204011
• Journal Information: Physical Review A, Journal Name: Physical Review A Journal Issue: 6 Vol. 79; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ATOMS
ENERGY DEPENDENCE
ENERGY RESOLUTION
ENERGY YIELD
EXCITATION
K SHELL
SYNCHROTRON RADIATION
TRANSITION ELEMENTS