Measurement of the D Line Doublet in High-Z Highly-Charged Sodium-like Ions

Published

July 8, 2009

Author(s)

John D. Gillaspy, Ilija Draganic, Yuri Ralchenko, Joseph Reader, Joseph N. Tan, Joshua M. Pomeroy, Samuel M. Brewer

Abstract

We report a direct observation of the D line doublet of sodium-like ions with Z≥72. Spectra in the 1 nm to 9 nm spectral range are presented showing the widely split doublet for Hf61+, Ta62+, W63+,and Au68+. The ions were produced and confined in an electron beam ion trap and observed with a flat-field grazing incidence spectrometer. The measured wavelengths agree well with predictions that take into account the effects of relativistic correlation and quantum electrodynamics. We also report the measured wavelengths for several transitions in Si-like, Al-like, and Mg-like ions.

Citation

Physical Review A (Atomic, Molecular and Optical Physics)

Volume

80

Issue

1

Pub Type

Journals

Keywords

Atomic Spectroscopy, Na-like Fine Structure, Extreme Ultraviolet, X-ray, highly charged ions, Na-like, electron beam ion trap, EBIT, atomic structure calculation, Tungsten, Hafnium, Tantalum, Gold

Citation

Gillaspy, J. , Draganic, I. , Ralchenko, Y. , Reader, J. , Tan, J. , Pomeroy, J. and Brewer, S. (2009), Measurement of the D Line Doublet in High-Z Highly-Charged Sodium-like Ions, Physical Review A (Atomic, Molecular and Optical Physics) (Accessed October 9, 2025)