Author: Bussmann, M.H.
Paper Title Page
TUM12
 Scaling Laser Cooling of Ion Beams towards High Beam Energies  
 
  • M.H. Bussmann, M. Löser, U. Schramm
    HZDR, Dresden, Germany
  • T. Beck, G. Birkl, D. Kiefer, S. Klammes, W. Nörtershäuser, S. Tichelmann, J. Ullmann, T. Walther
    TU Darmstadt, Darmstadt, Germany
  • O. Boine-Frankenheim, C. Dimopoulou, L. Eidam, T. Giacomini, C. Kozhuharov, Yu.A. Litvinov, M. Lochmann, W. Nörtershäuser, F. Nolden, R.M. Sanchez Alarcon, M.S. Sanjari, P.J. Spiller, M. Steck, T. Stöhlker, J. Ullmann, D.F.A. Winters
    GSI, Darmstadt, Germany
  • O. Boine-Frankenheim, L. Eidam
    TEMF, TU Darmstadt, Darmstadt, Germany
  • A. Buss, V. Hannen, D. Winzen
    Westfälische Wilhelms-Universität Münster, Institut für Kernphysik, Münster, Germany
  • X. Ma, H.B. Wang, W.Q. Wen, J. Yang
    IMP/CAS, Lanzhou, People's Republic of China
  • U. Schramm
    TU Dresden, Dresden, Germany
  • M. Siebold
    Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Institute of Radiation Physics, Dresden, Germany
  • T. Stöhlker
    HIJ, Jena, Germany
  
  Laser cooling has proven to be a viable technique for reducing the longitudinal phase space volume of bunched ion beams up to relativistic energies. Moreover, the fluorescence emitted from the ions due to deexcitation of the laser-excited cooling transition can serve as a powerful tool for atomic physics, e.g. for spectroscopy of fast transitions in highly charged ions, but also as a versatile diagnostic that can be seen as complimentary to standard, charge-based diagnostic techniques. In this presentation we will discuss how to design laser cooling setups for future high energy ion beam facilities such as FAIR and HIAF with special emphasis on the laser ion beam interaction and the resulting demands on laser systems used for reliable, turn-key laser cooling setups. We will present the state of the art of laser cooling, presenting recent results from beam times at ESR, GSI Darmstadt, and CSRe, IMP Lanzhou.  
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TUP05
 Towards Laser Cooling of Relativistic 16O5+ Ion Beams at the CSRe  
 
  • H.B. Wang, B. Hai, Z. Huang, J. Li, X.N. Li, X. Ma, L.J. Mao, R.S. Mao, W.Q. Wen, J.X. Wu, J.C. Yang, Y.J. Yuan, D. Zhang, D. Zhao
    IMP/CAS, Lanzhou, People's Republic of China
  • M.H. Bussmann
    HZDR, Dresden, Germany
  • D.F.A. Winters
    GSI, Darmstadt, Germany
  
  Laser cooling is one of the most promising techniques to achieve high phase-space densities or even crystalline beams for relativistic heavy ion beams at storage rings [*]. In addition, precision laser spectroscopy of relevant transitions in highly charged ions can also be performed simultaneously during the laser cooling experiments [**]. In the storage ring CSRe at IMP, a new laser cooling experiment for Li-like 16O5+ ion beams is currently being prepared and will be carried out at the end of the year 2017 under the Laser-cooling Collaboration. During the experiment, a CW laser with a wavelength of 220 nm will be used to cool the 16O5+ ion beams with an energy of 280 MeV/u. The 16O5+ ion beams will be the highest charge state and highest energy ions ever used for laser cooling at the storage rings. In the experiment, the longitudinally dynamics of ultra-cold ion beams will be investigate systematically towards the transition of the space charge dominated regime. Precision laser spectroscopy of 16O5+ ions for measuring the transition energy of 2s1/2'2p1/2 and 2s1/2'2p3/2 is foreseen.
[*] U. Schramm et al., Progress in Particle and Nuclear Physics, 53 (2004) 583-677.
[**] U. Schramm et al., Hyperfine Interactions 162(1) (2005), 181-188
 		 
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