RILIS-ionized mercury and tellurium beams at ISOLDE CERN

Abstract

This paper presents the results of ionization scheme development for application at the ISOLDE Resonance Ionization Laser Ion Source (RILIS). Two new ionization schemes for mercury are presented: a three-step three-resonance ionization scheme, ionizing via an excitation to a Rydberg level and a three-step two-resonance ionization scheme, with a non-resonant final step to the ionization continuum that corresponded to a factor of four higher ionization efficiency. The efficiency of the optimal mercury ionization scheme was measured, together with the efficiency of a new three-step three resonance ionization scheme for tellurium. The efficiencies of the mercury and tellurium ionization schemes were determined to be 6 % and >18 % respectively.

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Correspondence to T. Day Goodacre.

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This article is part of the Topical Collection on Proceedings of the 10th International Workshop on Application of Lasers and Storage Devices in Atomic Nuclei Research: “Recent Achievements and Future Prospects” (LASER 2016), Poznań, Poland, 16–19 May 2016

Edited by Krassimira Marinova, Magdalena Kowalska and Zdzislaw Błaszczak

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Day Goodacre, T., Billowes, J., Chrysalidis, K. et al. RILIS-ionized mercury and tellurium beams at ISOLDE CERN. Hyperfine Interact 238, 41 (2017). https://doi.org/10.1007/s10751-017-1398-6

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Keywords

  • RILIS
  • ISOLDE
  • Mercury
  • Tellurium
  • Laser ion source