Skip to main navigation Skip to search Skip to main content

First application of the Laser Ion Source and Trap (LIST) for on-line experiments at ISOLDE

  • Daneil A. Fink
  • , Stephan D. Richter
  • , Beyhan Bastin
  • , Klaus Blaum
  • , Richard Catherall
  • , Thomas Elias Cocolios
  • , Dmitry V. Fedorov
  • , Valentin N. Fedosseev
  • , Kieran T. Flanagan
  • , Lars Ghys
  • , A. Gottberg
  • , N. Imai
  • , T. Kron
  • , N. Lecesne
  • , K.M. Lynch
  • , B.A. Marsh
  • , T.M. Mendonca
  • , D. Pauwels
  • , E. Rapisarda
  • , João Pedro Fernandes Pinto Ramos
  • R.E. Rossel, S. Rothe, M.D. Seliverstov, M. Sjödin, T. Stora, C. Van Beveren, K.D.A. Wendt

    Research outputpeer-review

    Abstract

    he Laser Ion Source and Trap (LIST) provides a new mode of operation for the resonance ionization laser ion source (RILIS) at ISOLDE/CERN, reducing the amount of surface-ionized isobaric contaminants by up to four orders of magnitude. After the first successful on-line test at ISOLDE in 2011 the LIST was further improved in terms of efficiency, selectivity, and reliability through several off-line tests at Mainz University and at ISOLDE. In September 2012, the first on-line physics experiments to use the LIST took place at ISOLDE. The measurements of the improved LIST indicate more than a twofold increase in efficiency compared to the LIST of the 2011 run. The suppression of surface-ionized francium contaminants has enabled the first in-source laser spectroscopy of 217Po and 219Po.

    Cite this