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Lifetime measurement in138Ba+ using superimposed ion and laser beams

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Zeitschrift für Physik A Atoms and Nuclei

Abstract

As a feasibility test for nanosecond time resolution in the superimposed beam geometry, we remeasured the lifetime of the 6p 2P3/2 level of138Ba+ by a new technique. Merging an accelerated ion beam with an argon laser beam, optical resonance was achieved over a very short path length by Doppler tuning the ion velocity within a short post acceleration zone. The final results is τ=(6.31±0.05) ns which is in good agreement with a previous high precision measurement by Andrä. Implications for the possible observation of coherent transient effects in fast ion beams are briefly discussed.

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References

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Authors and Affiliations

  1. Institut für Experimentalphysik III der Ruhruniversität Bochum, Western Germany

    Helmut Winter

  2. Laboratoire de Spectrométrie Ionique et Moleculaire (associé au CNRS), Université Claude Bernard, Villeurbanne, France

    Michel Gaillard

Authors
  1. Helmut Winter
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  2. Michel Gaillard
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Additional information

We thank Prof. M. Dufay for his continuous guidance during completion of this work at the Laboratoire de Spectrometrie Ionique et Moleculaire. The use of the PDP 10 computer at the DTL/Bochum is also gratefully acknowledged.

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Winter, H., Gaillard, M. Lifetime measurement in138Ba+ using superimposed ion and laser beams. Z Physik A 281, 311–315 (1977). https://doi.org/10.1007/BF01408177

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  • DOI: https://doi.org/10.1007/BF01408177

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