Hydraulic adjustment of the two-phase helium forced flow cooled superconducting magnets of the SIS100 heavy ion synchrotron for FAIR

27th International Cryogenics Engineering Conference and International Cryogenic Materials Conference 2018

Bleile, A.^1 ; Datskov, V.^1 ; Fischer, E.^1 ; Khodzhibagiyan, H.^2 ; Mierau, A.^1 ; Nikiforov, D.^2

GSI, Plankstr.l, Darmstadt

D-64291, Germany^1

JINR, Joliot-Curie 6, Dubna

141980, Russia^2

关键词: Cooling circuits;    Corrector magnets;    Heavy ion synchrotrons;    High repetition rate;    Loss measurement;    Operation cycles;    Superconducting dipoles;    Two phase helium;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/502/1/012112/pdf
DOI  :  10.1088/1757-899X/502/1/012112

来源: IOP

【 摘 要 】

The fast ramped superconducting heavy ion synchrotron SIS100 is the core component of the international FAIR project at GSI in Darmstadt. The magnet system of the SIS100 consists of the superconducting dipoles, quadrupoles and corrector magnets assembled in cryogenic modules. In order to maximize the beam intensity the SIS100 main dipoles will operate up to 1.9 T with 4 T/s with a high repetition rate of up to 1 Hz. The various configurations of parallel cooling circuits must be hydraulically adjusted in respect to their dynamic heat load for a wide spread of operation cycles. We present the results of dynamic heat loss measurements for the different types of magnets as well as the procedure of their hydraulic adjustment.