Two-photon decay of K-shell vacancies in silver atoms

Journal Article · Wed Sep 01 00:00:00 EDT 2004 · Physical Review. A

DOI:https://doi.org/10.1103/PhysRevA.70.032504· OSTI ID:20646042

Mokler, P H ^[1]; Schaeffer, H W ^[1]; Dunford, R W ^[2]

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1. GSI Darmstadt, Darmstadt (Germany)
2. Argonne National Laboratory, Argonne, Illinois 60439 (United States)

The spectral distributions for the two-photon decay modes of singly K-shell ionized silver atoms are determined by x-ray-x-ray coincidence measurements. Ag K-shell vacancies were induced by nuclear electron capture decay of radioactive cadmium isotopes {sup 109}Cd and two-photon coincidences were taken back to back (180 deg.) and at a 90 deg. opening angle for the emission. Each of the two-photon transitions from the 2s, 3s, and 3d states exhibits unique angular and spectral distributions. The measurements agree nicely with relativistic self-consistent field calculations of Tong et al. Our results also confirm and extend the earlier experimental data of Ilakovac and co-workers with improved accuracy.

• OSTI ID: 20646042
• Journal Information: Physical Review. A, Vol. 70, Issue 3; Other Information: DOI: 10.1103/PhysRevA.70.032504; (c) 2004 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ATOMS
CADMIUM 109
DISTRIBUTION
ELECTRON CAPTURE DECAY
EMISSION
INNER-SHELL IONIZATION
K SHELL
PHOTON-ATOM COLLISIONS
PHOTONS
RELATIVISTIC RANGE
SELF-CONSISTENT FIELD
SILVER
VACANCIES
X RADIATION
X-RAY SPECTRA