Wavelength measurement of the $1 s 2 s {}^{3}S_{1} - 1 s 2 p {}^{3}P_{2}$ transition in heliumlike ${Fe}^{24 +}$

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1 June 1981

journal article
research article
Published by American Physical Society (APS) in Physical Review A

Vol. 23 (6) , 3354-3356
https://doi.org/10.1103/physreva.23.3354

Abstract

The wavelength of the transition

1 s 2 s {}^{3}S_{1} - 1 s 2 p {}^{3}P_{2}

of heliumlike Fe xxv has been measured in beam-foil-excited spectra at 7 MeV/nucleon. The result is

λ (2 {}^{3}P_{2} - 2 {}^{3}S_{1}) = 271.02 \mp 0.09

Å. The present wavelength measurement is sensitive to Lamb-shift contributions alone to a precision of ∓ 3%.

Keywords

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