Double K-Vacancy Production by X-Ray Photoionization
- Argonne National Laboratory, Argonne, IL 60439 (United States)
- University of Tennessee, Knoxville, TN 37996 (United States)
- Lawrence Livermore National Laboratory, Livermore, CA 94550 (United States)
- Tulane University, New Orleans, LA 70118 (United States)
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.
- OSTI ID:
- 20636453
- Journal Information:
- AIP Conference Proceedings, Vol. 652, Issue 1; Conference: 19. International conference on X-ray and inner-shell processes, Rome (Italy), 24-28 Jun 2002; Other Information: DOI: 10.1063/1.1536377; (c) 2003 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ADVANCED PHOTON SOURCE
ATOMS
AUGER EFFECT
COMPARATIVE EVALUATIONS
CONFIGURATION INTERACTION
FLUORESCENCE
HARTREE-FOCK METHOD
INNER-SHELL IONIZATION
K SHELL
MOLYBDENUM
NEON
PHOTOIONIZATION
PROBABILITY
SYNCHROTRON RADIATION
VACANCIES
X RADIATION
X-RAY SPECTRA