Superconducting Dipoles for SIS100

Roux, Christian; Bartolome, P. A.; Bleile, A.; Fischer, Egbert; Golluccio, Giancarlo; Kaether, F.; Ketter, Jochen; Meier, J.; Mierau, Anna; Omet, C.; Spiller, P.; Sugita, Kei; Szwangruber, Piotr; Warth, Alexander; Weiss, Harald

doi:10.18429/jacow-ipac2018-wepml035

Cited by 3 publications

(2 citation statements)

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“…The dipole magnets [6,7] are superferric superconducting magnets. The iron yoke is bent, the length is 3 m and the curvature radius is ρ = 52.632 m. A magnet testing facility with a rotating coil system [8] has been established at GSI Darmstadt.…”

Section: Main Magnet Field Errorsmentioning

confidence: 99%

“…Key components of the synchrotron are the fast-ramping (up to 4 T/s) superconducting magnets, enabling short cycles, as well as dedicated rf bunch compression cavities, enabling the extraction of a single, short (50 ns) ion bunch at the end of the cycle. All magnet systems are in production, most of the dipole magnets are already tested sucessfully [7], showing highest precision in field quality, matching the requirements for low loss operation with space charge. Besides charge stripping, space charge induced resonance crossing is expected to be a main beam loss mechanism for intense heavy ion beams in SIS100 at injection energy.…”

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confidence: 99%

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Beam quality and beam loss predictions with space charge for SIS100

et al. 2020

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The SIS100 synchrotron as a part of the new FAIR accelerator facility at GSI should be operated at the "space charge limit" for light and heavy-ion beams. Losses due to space charge induced resonance crossing should not exceed a few percent during a full cycle. Detailed magnet field measurements are now available for 72 out of the total 108 main SIS100 dipole magnets. Particle tracking studies including nonlinear field errors up to 7 th order in the main magnets together with different space charge models are performed. Because of the long time scales reduced space charge models are employed for tune scans. First comparisons with simulations using a self-consistent space charge solver are discussed as well as potential measures to further improve the options in tune space for the reference intensities and beyond. K: Accelerator modelling and simulations (multi-particle dynamics; single-particle dynamics); Beam dynamics; Beam Optics 1Corresponding author.

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Section: Main Magnet Field Errorsmentioning

confidence: 99%

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confidence: 99%