Forbidden optical transition in Ti-like Xe, Ba, and Ir

Journal Article · Fri Jan 09 00:00:00 EST 2015 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4905406· OSTI ID:22390838

Bekker, H.; Windberger, A.; Binder, M.; López-Urrutia, J. R. Crespo ^[1]; Versolato, O. O. ^[2]; Klawitter, R. ^[3]

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1. Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg (Germany)
2. Physikalisch-Technische Bundesanstalt, Bundesallee 100, 38116, Braunschweig (Germany)
3. TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia, V6T 2A3 Canada and Department of Physics and Astronomy, University of British Columbia, Vancouver, British Columbia, V6T 1Z1 (Canada)

We present measurements of the (3d{sup 4}){sup 5}D{sub 2}−{sup 5}D{sub 3} transitions in the Ti-like ions Xe{sup 32+}, Ba{sup 34+}, and Ir{sup 55+} produced and trapped in the Heidelberg electron beam ion trap. The obtained wavelengths have a precision at the few ppm-level and are thereby the most precise measurements of these transitions up to date. For Z=60−75 semi-empirical calculations have shown excellent agreement, however our measurements combined with data from other works shows that outside this range predictions quickly deviate. The value obtained for Ir{sup 55+} 357.434(2) nm confirms the linear mismatch to ab initio calculations for Z > 70, as hypothesized in Utter et al., Phys. Rev. A 67, 012508 (2003)

• OSTI ID: 22390838
• Journal Information: AIP Conference Proceedings, Vol. 1640, Issue 1; Conference: 12. International Symposium on Electron Beam Ion Sources and Traps, East Lansing, MI (United States), 18-21 May 2014; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ACCURACY
BARIUM IONS
ELECTRON BEAMS
ENERGY-LEVEL TRANSITIONS
IRIDIUM IONS
MULTICHARGED IONS
TRAPPING
TRAPS
XENON IONS