Double K-vacancy production by x-ray photoionization.

Conference · Tue Aug 13 04:00:00 EDT 2002

DOI:https://doi.org/10.1063/1.1536377· OSTI ID:799803

Southworth, S H; Dunford, R W; Kanter, E P; Krassig, B; Young, L; Armen, G B; Levin, J C; Chen, M H; Ederer, D L

We have studied double K-shell photoionization of Ne and Mo (Z = 10 and 42) at the Advanced Photon Source. Double K-vacancy production in Ne was observed by recording the KK-KLL Auger hypersatellite spectrum. Comparison is made with calculations using the multiconfiguration Dirac-Fock method. For Mo, double K-vacancy production was observed by recording the K{alpha}, {beta} fluorescence hypersatellite and satellite x rays in coincidence. From the intensities of the Auger or x-ray hypersatellites relative to diagram lines, the probabilities for double K-vacancy production relative to single K-vacancies were determined. These results, along with reported measurements on other atoms, are compared with Z-scaling calculations of the high-energy limits of the double-to-single K-shell photoionization ratio.

• Research Organization: Argonne National Lab., IL (US)
• Sponsoring Organization: US Department of Energy (US)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 799803
• Report Number(s): ANL/CHM/CP-108402
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
ADVANCED PHOTON SOURCE
ATOMS
FLUORESCENCE
K SHELL
PHOTOIONIZATION
PRODUCTION
SATELLITES