Author: Smirnov, A.V.
Paper Title Page
MOZA01 Ultralow Emittance Beam Production based on Doppler Laser Cooling and Coupling Resonance 28
 
  • A. Noda, M. Nakao
    NIRS, Chiba-shi, Japan
  • M. Grieser
    MPI-K, Heidelberg, Germany
  • Z.Q. He
    FRIB, East Lansing, Michigan, USA
  • Z.Q. He
    TUB, Beijing, People's Republic of China
  • K. Jimbo
    Kyoto University, Kyoto, Japan
  • H. Okamoto, K. Osaki
    HU/AdSM, Higashi-Hiroshima, Japan
  • A.V. Smirnov
    JINR, Dubna, Moscow Region, Russia
  • H. Souda
    Gunma University, Heavy-Ion Medical Research Center, Maebashi-Gunma, Japan
  • H. Tongu
    Kyoto ICR, Uji, Kyoto, Japan
  • Y. Yuri
    JAEA/TARRI, Gunma-ken, Japan
  
  Funding: Work supported by Advanced Compact Accelerator Development project by MEXT of Japan. It is also supported by GCOE project at Kyoto University, “The next generation of Physics-Spun from Universality"
Doppler laser cooling has been applied to low-energy (40 keV) Mg ions together with the resonant coupling method* at the S-LSR at ICR, Kyoto University,. The S-LSR storage ring has a high super periodicity of 6, which is preferable from the beam dynamical point of view. At S-LSR one dimensional ordering of proton beam was already realized for the first time**. Active three dimensional laser cooling has been experimentally demonstrated for ions with un-negligible velocity (v/c=0.0019, where c is the light velocity) for the first time. Utilizing the above mentioned characteristics of S-LSR, an approach to realize ultralow emittances has been pursuit. To suppress heating effects, due to intra-beam scattering, the circulating ion beam intensity was reduced by scraping and beam emittances of 1.3·10-11 pi m·rad and 8.5·10-12 pi m·rad (normalized) have been realized for the horizontal and vertical directions, respectively with the 40 keV Mg ion beam at a beam intensity of ~104, which is the lowest emittance ever attained by laser cooling. From MD computer simulations, it is predicted that reduction of the ion number to about 103 is needed to realize a crystalline string.
* H. Okamoto, A.M. Sessler, D. Moehl, Phys. Rev. Lett. 72, 397 (1994).
** T. Shirai et. al., Phys. Rev. Lett. 98, 204801 (2007).
 
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DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2014-MOZA01  
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TUPRO005 Status of the NICA Project at JINR 1003
 
  • G.V. Trubnikov, N.N. Agapov, A.V. Butenko, D.E. Donets, E.D. Donets, E.E. Donets, A.V. Eliseev, E.V. Gorbachev, A. Govorov, E.V. Ivanov, V. Karpinsky, V.D. Kekelidze, H.G. Khodzhibagiyan, S.A. Kostromin, A.D. Kovalenko, O.S. Kozlov, V.A. Matveev, I.N. Meshkov, V.A. Mikhailov, V. Monchinsky, N. Shurkhno, A.O. Sidorin, I. Slepnev, V. Slepnev, A.V. Smirnov, A. Sorin, N.D. Topilin, A. Tuzikov, V. Volkov
    JINR, Dubna, Moscow Region, Russia
  • O.I. Brovko, A.V. Philippov, N.V. Semin
    JINR/VBLHEP, Dubna, Moscow region, Russia
  
  Nuclotron-based Ion Collider fAcility (NICA) is the new accelerator complex being constructed in Joint Institute for Nuclear Research. General goal of the project is to provide experimental study of hot and dense strongly interacting QCD matter. The development of NICA injection complex is actively performed. Construction of new 3.2 MeV/u heavy-ion linear accelerator (HILac) is now under way in Germany. Construction of booster has been started. In this report the present status of the NICA accelerator complex are presented.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2014-TUPRO005  
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