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Lorentz, B.

Paper Title Page
TUPAN028 A Low Beta Section for Polarization Studies of Antiprotons by Spin Filtering 1451
 
  • M. Statera, P. Lenisa, G. Stancari
    INFN-Ferrara, Ferrara
  • A. Garishvili, B. Lorentz, S. A. Martin, F. Rathmann
    FZJ, Julich
  
  In the framework of the FAIR* project, the PAX collaboration has suggested new experiments using polarized antiprotons**. The central physics issue is now to study the polarization build-up by spin filtering of antiprotons via multiple passages through an internal polarized gas target. The goals for spin-filtering experiments with protons at COSY are to test our understanding of the spin-filtering processes and to commission the setup for the AD experiments with antiprotons at the AD (CERN). Spin-filtering experiments with antiprotons at the AD will allow us to determine the total spin-dependent transversal and longitudinal cross sections. The low-beta section at COSY is composed of two superconducting quadrupole magnets on each side of the target, while at the AD, we will use three quadrupoles on each side. Accelerator technical problems and details for COSY and AD to carry out the planned spin-filtering studies together with the technical problems and details of the superconducting quadrupoles with their respective cryogenics will be discussed in this talk. The status of the construction of the quadrupoles will be reported as well.

* Conceptual Design Report for an International Facility for Antiprotonand Ion Research, www.gsi.de/GSI-future/cdr.** PAX Technical Proposal, www.fz-juelich.de/ikp/pax.

 
TUPAN024 HESR at FAIR: Status of Technical Planning 1442
 
  • R. Tolle, K. Bongardt, J. Dietrich, F. M. Esser, O. Felden, R. Greven, G. Hansen, F. Klehr, A. Lehrach, B. Lorentz, R. Maier, D. Prasuhn, A. Raccanelli, M. Schmitt, Y. Senichev, E. Senicheva, R. Stassen, H. Stockhorst
    FZJ, Julich
  • T. Bergmark, S. Johnson, T. Johnson, T. Lofnes, G. Norman, T. Peterson
    Uppsala University, Uppsala
  • B. Gålnander, D. Reistad
    TSL, Uppsala
  • F. Hinterberger
    Universität Bonn, Helmholtz-Institut für Strahlen- und Kernphysik, Bonn
  • K. Rathsman
    UU/ISV, Uppsala
  • M. Steck
    GSI, Darmstadt
  
  The High-Energy Storage Ring (HESR) of the international Facility for Antiproton and Ion Research (FAIR) at GSI in Darmstadt is dedicated to Strong Interaction studies with antiprotons in the momentum range from 1.5 to 15 GeV/c. Powerful phase-space cooling is needed to reach demanding experimental requirements in terms of luminosity and beam quality. Status and details of technical planning including cryogenic concept will be presented.