%0 Conference Paper
%A Boine-Frankenheim, Oliver
%A Kornilov, Vladimir
%T Instability mitigation using octupoles in bunches with space-charge
%C Geneva, Switzerland
%I JACoW Publishing
%M GSI-2025-00522
%P 2673 - 2676
%D 2023
%Z Published by JACoW Publishing under the terms of the Creative Commons Attribution 4.0 license. 
%X Octupole magnets are a central mitigation method against the transverse collective instabilities expected for the high-intensity operation of the SIS18 and SIS100 synchrotrons in the FAIR project. For these beam parameters, the self-field space-charge effect dominates the betatron footprint, and strongly modifies the instability drive and the Landau damping properties. The space-charge tune shifts are related to all three incoherent amplitudes, and is an intrinsic interaction. We consider all these effects and study Landau damping of head-tail modes due to the combination of octupoles and space-charge. Using the data from experimental instability observations, and particle tracking simulations, we provide estimations for the expected high-intensity operation of the SIS synchrotrons.
%B 14th International Particle Accelerator Conference
%C 7 May 2023 - 12 May 2023, Venice (Italy)
Y2 7 May 2023 - 12 May 2023
M2 Venice, Italy
%K Accelerator Physics (Other)
%K mc5-beam-dynamics-and-em-fields - MC5: Beam Dynamics and EM Fields (Other)
%K mc5-d06-coherent-and-incoherent-instabilities-measurements-and-countermeasures - MC5.D06: Coherent and Incoherent Instabilities Measurements and Countermeasures (Other)
%F PUB:(DE-HGF)8
%9 Contribution to a conference proceedings
%R 10.18429/JACOW-IPAC2023-WEPA015
%U https://repository.gsi.de/record/358338