Double K-Vacancy Production by X-Ray Photoionization

Journal Article · Fri Jan 24 04:00:00 EST 2003 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.1536377· OSTI ID:20636453

Southworth, S H; Dunford, R W; Kanter, E P; Kraessig, B; Young, L ^[1]; Armen, G B; Levin, J C ^[2]; Chen, M H ^[3]; Ederer, D L ^[4]

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1. Argonne National Laboratory, Argonne, IL 60439 (United States)
2. University of Tennessee, Knoxville, TN 37996 (United States)
3. Lawrence Livermore National Laboratory, Livermore, CA 94550 (United States)
4. 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, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 652; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
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