Spectroscopy of 2s[subscript 1/2]-2p[subscript 3/2] transitions in W[superscript 65+] through W[superscript 71+]
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Podpaly-2009-Specroscopy.pdf
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Author(s)
Gu, Ming F.
Brown, G. V.
Williamson, J.
Beiersdorfer, P.
Clementson, J.
Podpaly, Yuri
Date Issued
November 2009
Journal
Physical Review A
Publisher
American Physical Society
Citation
Podpaly, Y. et al. “Spectroscopy of 2 s1/2 -2 p3/2 transitions in W65+ through W71+.” Physical Review A 80.5 (2009): 052504. © 2009 The American Physical Society
Version
Final published version
Abstract
A high-resolution flat-crystal spectrometer was used on the SuperEBIT electron beam ion trap to measure the energies of the 2s[subscript 1/2]-2p[subscript 3/2] transitions in lithiumlike through fluorinelike tungsten. These transitions are strongly affected by energy shifts due to quantum electrodynamics (QED). SuperEBIT was run at an electron energy of 103.2±0.5 keV and an electron beam current of 150 mA to generate the respective charge states; hydrogenlike aluminum and neonlike krypton were used as calibration elements. The spectra were analyzed with and the results compared to calculations based on the flexible atomic code. Good agreement was found. The measurements yielded line positions with a precision of 1–2 eV, which test QED calculations to 5%–10%.
MIT Department
Massachusetts Institute of Technology. Department of Nuclear Science and Engineering
Massachusetts Institute of Technology. Plasma Science and Fusion Center
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
http://dx.doi.org/10.1103/PhysRevA.80.052504
