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Laser assisted decay spectroscopy at the CRIS beam line at ISOLDE

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Abstract

The new collinear resonant ionization spectroscopy (Cris) experiment at Isolde, Cern uses laser radiation to stepwise excite and ionize an atomic beam for the purpose of ultra-sensitive detection of rare isotopes and hyperfine structure measurements. The technique also offers the ability to purify an ion beam that is contaminated with radioactive isobars, including the ground state of an isotope from its isomer. A new program using the Cris technique to select only nuclear isomeric states for decay spectroscopy commenced last year. The isomeric ion beam is selected using a resonance within its hyperfine structure and subsequently deflected to a decay spectroscopy station. This consists of a rotating wheel implantation system for alpha and beta decay spectroscopy, and up to three high purity germanium detectors for gamma-ray detection. This paper gives an introduction to the Cris technique, the current status of the laser assisted decay spectroscopy set-up and recent results from the experiment in November 2011.

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Author notes

  1. M. M. Rajabali

    Present address: TRIUMF, Vancouver, BC, V6T 2A3, Canada

Authors and Affiliations

  1. School of Physics and Astronomy, The University of Manchester, Manchester, M13 9PL, UK

    K. M. Lynch

  2. Physics Department, CERN, 1211, Geneva 23, Switzerland

    K. M. Lynch & T. E. Cocolios

  3. Instituut voor Kern- en Stralingsfysica, KU Leuven, 3001, Leuven, Belgium

    M. M. Rajabali

Authors
  1. K. M. Lynch
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  2. T. E. Cocolios
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  3. M. M. Rajabali
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on behalf of the CRIS collaboration

Corresponding author

Correspondence to K. M. Lynch.

Additional information

Proceedings of the 6th international conference on Laser Probing (LAP 2012), Paris, France, 4–8 June 2012.

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Lynch, K.M., Cocolios, T.E., Rajabali, M.M. et al. Laser assisted decay spectroscopy at the CRIS beam line at ISOLDE. Hyperfine Interact 216, 95–101 (2013). https://doi.org/10.1007/s10751-013-0820-y

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  • DOI: https://doi.org/10.1007/s10751-013-0820-y

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