Speaker
Description
The synchrotron SIS100 at FAIR, under construction in Darmstadt, Germany, will deliver slow-extracted proton and ion beams up to 100 Tm using resonant extraction. The baseline method is transverse knock-out (KO) extraction, while the COSE (Constant Optics Slow Extraction) scheme has emerged as a promising alternative to quadrupole-driven extraction. This is particularly relevant for experiments requiring short extraction times, which are challenging to attain with KO extraction due to the power limitations of the KO exciter. Higher-order multipoles from the fast-ramping super-ferric dipole and quadrupole magnets deform the separatrix and increase the angular spread of particles with different momenta at the electrostatic septum, leading to enhanced losses. Recently, a modified design of the correction magnets incorporating compensation for the decapole components from the dipole magnets have been explored as a mitigation measure. In this contribution, we present the status of SIS100 slow-extraction simulations for different extraction schemes, including the effects of systematic and random magnetic-field errors.
| In which format do you inted to submit your paper? | LaTeX |
|---|