{ital K}{alpha} hypersatellite lines of medium-mass atoms induced by 100-MeV {sup 4}He{sup 2+} ions

Journal Article · Mon May 01 04:00:00 EDT 1995 · Physical Review A

DOI:https://doi.org/10.1103/PhysRevA.51.3650· OSTI ID:44642

Boschung, B; Dousse, J; Galley, B; Herren, C; Hoszowska, J; Kern, J; Rheme, C ^[1]; Halabuka, Z ^[2]; Ludziejewski, T; Rymuza, P; Sujkowski, Z ^[3]; Polasik, M ^[4]

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1. Physics Department, University of Fribourg, CH-1700 Fribourg (Switzerland)
2. Physics Department, University of Basel, CH-4056 Basel (Switzerland)
3. Institute for Nuclear Studies, 05-400 Swierk (Poland)
4. Faculty of Chemistry, Nicolas Copernicus University, 87-100 Torun (Poland)

The radiative decay of double {ital K}-shell vacancies in zirconium ({ital Z}=40), molybdenum ({ital Z}=42), and palladium ({ital Z}=46) was observed using a high-resolution transmission crystal spectrometer. The samples were ionized by the impact of 100-MeV {sup 4}He{sup 2+} ions. From the well resolved {ital K}{sup {minus}2}{r_arrow}{ital K}{sup {minus}1}{ital L}{sup {minus}1} transitions, the energies, linewidths, intensity ratios, and double {ital K}-shell ionization cross sections were deduced. The experimental energies and linewidths of the hypersatellites are compared with results of Dirac-Hartree-Slater calculations and with multiconfiguration-Dirac-Fock calculations, both taking into account the Breit interaction. For the extracted double {ital K}-shell ionization cross sections a comparison is made with the semiclassical approximation predictions within the independent-particle model.

• OSTI ID: 44642
• Journal Information: Physical Review A, Journal Name: Physical Review A Journal Issue: 5 Vol. 51; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
ALPHA PARTICLES
CROSS SECTIONS
INNER-SHELL IONIZATION
ION-ATOM COLLISIONS
K SHELL
LINE WIDTHS
MEV RANGE
MOLYBDENUM
PALLADIUM
RADIATIVE DECAY
ZIRCONIUM