Measurement of the radiative lifetime of the 1s2s 3S1 level in heliumlike magnesium

Details Measurement of the radiative lifetime of the 1s2s 3S1 level in heliumlike magnesium Measurement of the radiative lifetime of the 1s2s 3S1 level in heliumlike magnesium

Nov 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995phrva..52.3651s&link_type=abstract

Physical Review A (Atomic, Molecular, and Optical Physics), Volume 52, Issue 5, November 1995, pp.3651-3654

Physics

22

Absolute And Relative Intensities, Electron-Ion Scattering, Excitation And Ionization, Atomic And Molecular Data, Spectra, And Spectral Parameters

Scientific paper

We apply a recently developed electron-beam ion trap technique to measure the lifetime of the 1s2s 3S1 level in heliumlike magnesium. The technique employs a fast-switching electron beam to produce and excite electrostatically trapped ions. The radiative lifetime is determined by observing the fluorescent decay of the 1s2s 3S1 level after the beam energy is switched below the threshold for electron-impact excitation. A value of 13.61+/-0.49 μs has been measured for the 1s2s 3S1 level in heliumlike magnesium, in good agreement with theoretical predictions.

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