TUOBM  —  Hadron Accelerators   (24-Jun-08   11:10—12:30)

Chair: H. Klein, IAP, Frankfurt am Main

Paper Title Page
TUOBM01 Advanced Design of the FAIR Storage Ring Complex 1004
 
  • M. Steck, C. Dimopoulou, A. Dolinskii, O. E. Gorda, V. Gostishchev, K. Knie, S. A. Litvinov, I. Nesmiyan, F. Nolden, D. Obradors-Campos, C. Peschke
    GSI, Darmstadt
 
  The storage ring complex of the FAIR comprises three storage rings with a magnetic rigidity of 13 m. Each of the three rings, CR, RESR, and NESR, serves specific tasks in the preparation of secondary beams, rare isotopes and antiprotons, or for experiments with heavy ion beams. The CR is optimized for fast stochastic pre-cooling of secondary beams. The RESR design has been recently revised for optimum performance of antiproton accumulation. The concept for the installation of both rings in a common building is elaborated. The ion optical and engineering design of the NESR for experiments with heavy ions, the deceleration of ions or antiprotons for a subsequent low energy facility, and the accumulation of rare isotope beams is proceeding. A section for collision experiments with circulating ions and counter propagating electrons or antiprotons has been worked out. This report will give a summary of the various new concepts conceived in the process of the design of this new storage ring facility.  
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TUOBM02 The Development of the Separated Function RFQ Accelerator in Peking University 1007
 
  • X. Q. Yan, J.-E. Chen, J. X. Fang, S. L. Gao, Z. Y. Guo, Y. R. Lu, Z. Wang, K. Zhu
    PKU/IHIP, Beijing
 
  The progress of the Separated Function RFQ (SFRFQ) accelerator, which can raise the field gradient of acceleration while maintaining the transverse focusing power sufficient for high current beam, is presented. In order to demonstrate the feasibilities of the novel accelerator, a prototype cavity was designed and constructed. Correspondingly, a code SFRFQCODEV1.0 was developed specially for cavity design and beam dynamics simulation. The prototype cavity will be verified as a post-accelerator for ISR RFQ-1000 (Integral Split Ring RFQ) and accelerate O+ from 1 MeV to 1.6 MeV. To inject a higher current oxygen beam for the prototype cavity, the beam current of ISR RFQ-1000 was upgraded to 2 mA. The status of high power and beam test of the prototype cavity are presented in this paper.  
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TUOBM03 High-Intensity Polarized H- (Proton), Deuteron and 3He++ Ion Source Development at BNL 1010
 
  • A. Zelenski, J. G. Alessi, A. Kponou, D. Raparia
    BNL, Upton, Long Island, New York
 
  New techniques for production of polarized H- (protons), deuteron and 3He++ ion beams (based on optical pumping polarization method) will be discussed. Feasibility studies of these techniques are in progress at BNL. The depolarization factors in the multi-step spin-transfer polarization technique and basic limitations on maximum polarization in the OPPIS (Optically-Pumped Polarized H- Ion Source) will be discussed. Detailed studies of polarization losses in the RHIC OPPIS and the source parameters optimization resulted in the OPPIS polarization increase to 86-90%. This contributed to AGS and RHIC polarization increase to 65-70%.  
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TUOBM04 FFAGs for the ERIT and ADS Projects at KURRI 1013
 
  • T. Uesugi, H. Horii, Y. Kuriyama, K. Mishima, Y. Mori, A. Osanai, T. Planche, S. Shiroya, M. Tanigaki, H. Yoshino
    KURRI, Osaka
  • M. Inoue
    SLLS, Shiga
  • Y. Ishi
    Mitsubishi Electric Corp, Energy & Public Infrastructure Systems Center, Kobe
  • M. Muto
    FFAG DDS Research Organization, Tokyo
  • K. Okabe, I. Sakai
    University of Fukui, Faculty of Engineering, Fului
 
  A chain of FFAG proton accelerator have been under construction at Kyoto University Research Reactor Institute (KURRI), Osaka, for the study of accelerator driven system (ADS) since 2004. The accelerator is a cascade type and composed of three different FFAG rings: injector, booster and main ring. The maximum energy of the main ring is 150 MeV for proton. The beam was successfully accelerated and extracted from the booster in June of 2006 and the beam commissioning of the main ring has started since then. Recently the beam has been successfully injected into the main ring.  
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