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Sugita, K.

Paper Title Page
MOPEB027 3D Static and Dynamic Field Quality Calculations for Superconducting SIS100 Corrector Magnets 337
 
  • K. Sugita, E.S. Fischer, P. Schnizer
    GSI, Darmstadt
  • P.G. Akishin
    JINR, Dubna, Moscow Region
  • A. Mierau
    TEMF, TU Darmstadt, Darmstadt
  
 

Su­per­con­duct­ing mag­nets are planned to be in­stalled at the SIS100 ac­cel­er­a­tor ring for FAIR. The error com­pen­sa­tion mul­ti­pole cor­rec­tor and the steer­er are built as nest­ed mag­nets to save lon­gi­tu­di­nal space in the ring, the chro­matic­i­ty sex­tupole is a su­per­fer­ric mag­net. We pre­sent the dy­nam­ic field qual­i­ty of the SIS100 dipole and the vac­u­um cham­ber de­te­ri­o­ra­tion next to the 2D and 3D field qual­i­ty of the mul­ti­pole cor­rec­tor and of the chro­matic­i­ty cor­rec­tor. The qual­i­ty of the in­jec­tion field of the SIS100 dipole is main­ly dom­i­nat­ed by eddy cur­rents as soon as the field ramp starts. We show its AC loss­es con­cern­ing the hy­draulic lim­its for cool­ing the mag­net with forced two phase he­li­um flow and con­clude on the max­i­mum chro­matic­i­ty cor­rec­tion which is fea­si­ble for the fore­seen mag­net de­sign. The re­sults are dis­cussed in re­spect of re­cent beam dy­nam­ic cal­cu­la­tions on the ramp.