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@inproceedings{artikova:ipac2021-wepab384,
author = {S. Artikova and D. Ondreka and K. Schulte-Urlichs and P.J. Spiller},
title = {{Design and Beam Dynamics of the Electron Lens for Space Charge Compensation in SIS18}},
booktitle = {Proc. IPAC'21},
pages = {3614--3617},
eid = {WEPAB384},
language = {english},
keywords = {electron, space-charge, simulation, solenoid, dipole},
venue = {Campinas, SP, Brazil},
series = {International Particle Accelerator Conference},
number = {12},
publisher = {JACoW Publishing, Geneva, Switzerland},
month = {08},
year = {2021},
issn = {2673-5490},
isbn = {978-3-95450-214-1},
doi = {10.18429/JACoW-IPAC2021-WEPAB384},
url = {https://jacow.org/ipac2021/papers/wepab384.pdf},
note = {https://doi.org/10.18429/JACoW-IPAC2021-WEPAB384},
abstract = {{An electron lens for space charge compensation is being developed at GSI to increase the ion beam intensities in SIS18 for the FAIR project. It uses an electron beam of 10A maximum current at 30keV. The maximum magnetic field on-axis is 0.6T, considerably higher than the field of the existing electron cooler. The magnetic system of the lens consists of solenoids and toroids. The toroids’ vertical field component creates a significant horizontal orbit deflection in the circulating low rigidity ion beam. To correct this deflection, four correction dipoles have been introduced. As common for electron lenses, the high-power electron beam is not dumped at ground potential, but rather in a collector with a small bias potential with respect to the cathode. The present design foresees a collector at -27kV, leading to a power dissipation of 30kW, distributed over a large surface area by placing the collector in an appropriately shaped magnetic field of a pre-collector solenoid. This contribution reports on the design of the lens and presents the results of beam transport simulations for the electron beam (with space charge) and a representative ion beam, performed using the 3D CST STUDIO.}},
}