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Auchmann, B.

Paper Title Page
TOAA009 Recent Test Results of the Fast-Pulsed 4 T COSO Dipole GSI 001 683
 
  • G. Moritz, J. Kaugerts
    GSI, Darmstadt
  • B. Auchmann, S. Russenschuck, R. de Maria
    CERN, Geneva
  • J. Escallier, G. Ganetis, A.K. Jain, A. Marone, J.F. Muratore, R.A. Thomas, P. Wanderer
    BNL, Upton, Long Island, New York
  • M. Wilson
    Oxford Instruments, Accelerator Technology Group, Oxford, Oxon
  
  For the FAIR-project at GSI a model dipole was built at BNL with the nominal field of 4 T and a nominal ramp rate of 1 T/s. The magnet design was similar to the RHIC dipole with some changes for loss reduction and better cooling. The magnet was already successfully tested in a vertical cryostat with good training behaviour. Cryogenic losses were measured and first results of field harmonics were published. However, for a better understanding of the cooling process quench currents at several ramp rates were investigated. Detailed measurements of the field harmonics at different ramp rates and at several cycles were performed. To separate the effects of the coil and the iron yoke the magnet was disassembled and tested as collared coil only. Recent test results will be presented.