Open AccessElectro-thermal analysis of the superconducting dipole circuit of SIS100
Author(s) -
V. Raginel,
Piotr Szwangruber,
Walter Freisleben,
Christian Roux
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1559/1/012074
Subject(s) - resistor , magnet , superconducting magnet , dipole , electrical engineering , physics , nuclear engineering , topology (electrical circuits) , mechanical engineering , engineering , voltage , quantum mechanics
The heavy ion synchrotron SIS100, the core machine of the new international Facility for Antiproton and Ion Research (FAIR) in Darmstadt, is currently under construction. The 108 superconducting dipole magnets of SIS100 will be powered in series with a cycling rate up to 30kAs −1 which corresponds to 4Ts −1 . The dipole magnet protection system considers 12 energy extraction resistors and two crowbars at the outputs of two power converters. As a part of the Failure Mode and Effects Analysis, the most critical failures of the magnet protection system are simulated. In this contribution, initial studies of the electrical and thermal behaviour of the SIS100 main dipole circuit during a quench are presented. The dipole magnet design and topology of the powering circuit (including the protection system) are described. The electro-thermal model in use is detailed. Finally, simulation of a failure mode of the magnet protection system is presented and results are discussed.