Author: Dolinskyy, A.
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MOZGBF2 Status of the FAIR Project 63
  • P.J. Spiller, M. Bai, O. Boine-Frankenheim, A. Dolinskyy, F. Hagenbuck, C.M. Kleffner, K. Knie, S. Menke, C. Omet, A. Schuhmann, H. Simon, M. Winkler
    GSI, Darmstadt, Germany
  • J. Blaurock, M. Ossendorf
    FAIR, Darmstadt, Germany
  • I. Koop
    BINP SB RAS, Novosibirsk, Russia
  • D. Prasuhn, R. Tölle
    FZJ, Jülich, Germany
  The realization of the new Facility for Antiproton and Ion Research, FAIR at GSI, Germany, has advanced significantly. The civil construction process of the Northern part of the building complex, including the excavation of the SIS100 synchrotron tunnel has been launched end of 2017. On site of the GSI campus, major preparations and upgrade measures for the injector operation of the existing accelerator facilities are ongoing and will be completed mid of 2018. The shielding of the SIS18 accelerator tunnel has been enhanced for the booster operation at high repetition rates and high intensity Proton beams. Two new transformer stations were set-up and commissioned which will provide the required pulse and common power for FAIR. All major contracts for series production of SIS100 components have been signed and a large number of the superconducting SIS100 magnets has been produced and accepted. Major testing infrastructures for superconducting magnets of SIS100 and Super-FRS have been set-up at JINR, CERN and GSI. Also for all other FAIR accelerator systems, the procurement of the components is progressing well  
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WEPML034 Design and Commissioning of the RF System of the Collector Ring at FAIR 2765
  • U. Laier, R. Balß, A. Dolinskyy, P. Hülsmann, H. Klingbeil, T. Winnefeld
    GSI, Darmstadt, Germany
  • G. Blokesch, F. Wieschenberg
    Ampegon PPT GmbH, Dortmund, Germany
  • K. Dunkel, M. Eisengruber, J.H. Hottenbacher
    RI Research Instruments GmbH, Bergisch Gladbach, Germany
  • C. Morri, M.P. Pretelli, G.T. Taddia
    OCEM, Valsamoggia, Italy
  The Collector Ring (CR), a storage ring intended to perform efficient cooling of secondary beams, is under construction at GSI in the scope of the FAIR project. The RF system of the CR has to provide a frequency range from 1.1 to 1.5 MHz and pulsed gap voltages of up to 200 kVp (0.2 to 1 Hz, max. 10-3 duty cycle) and up to 10 kVp in CW operation. Five identical RF stations will be built. Each RF station consists of an inductively loaded cavity, a tetrode based power amplifier, a semiconductor driver amplifier, a switch mode power supply and two digital feedback loops. The main components of the RF station are designed, built and commissioned in close collaboration between GSI and three companies: RI Research Instruments GmbH, Ampegon PPT GmbH and OCEM Energy Technology SRL. In 2016, the first of five RF stations has been integrated at GSI. In 2017 the system was successfully commissioned to demonstrate that all envisaged parameters have been achieved. This contribution will present the requirements imposed the system, the principal design of the overall system as well as of its key components, and the results of the commissioning of the first RF station.  
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THPAF078 Expected Performance of the Stochastic Cooling and RF System in the Collector Ring 3165
  • O.E. Gorda, C. Dimopoulou, A. Dolinskyy
    GSI, Darmstadt, Germany
  • T. Katayama
    Nihon University, Narashino, Chiba, Japan
  The Collector Ring is designed for stochastic cooling of antiprotons or radioactive ions at FAIR. Simulations of the cooling process in combination with the required RF beam manipulations have been done taking into account the improved and recently fixed ion-optics. The measured RF properties of the first of series debuncher system have been considered to evaluate the performance of the bunch rotation, de-bunching and re-bunching process within the planned CR operation cycle. The expected beam parameters and matching at extraction to the HESR storage ring are discussed in this paper. The latest hardware developments of the stochastic cooling system components are also presented.  
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