Author: Apse-Apsitis, P.
Paper Title Page
TUPAB200 Status of the Electron Lens for Space Charge Compensation in SIS18 1880
 
  • K. Schulte-Urlichs, S. Artikova, D. Ondreka, P.J. Spiller
    GSI, Darmstadt, Germany
  • P. Apse-Apsitis, I. Steiks
    Riga Technical University, Riga, Latvia
  • M. Droba, O. Meusel, H. Podlech, K.I. Thoma
    IAP, Frankfurt am Main, Germany
 
  At GSI a project has been initiated to investigate the option of space charge compensation (SCC) by use of an electron lens in order to overcome space charge (SC) limits in the synchrotrons SIS18 and SIS100 for the Facility for Antiproton and Ion Research (FAIR). The repeated crossing of resonance lines due to the synchrotron motion in bunched beams is considered one of the main drivers of SC induced beam loss in the synchrotrons. Electron lenses provide a compensation of ion beam SC by virtue of their negative charge interacting with the ions in the overlap region while a time-varying compensation can be achieved by the modulation of the electron beam. In order to demonstrate space charge compensation of bunched ion beams, an electron lens is under development for the application in SIS18. In this contribution, the status of the electron lens design will be reported putting special emphasis on its main components: the RF modulated electron gun, that is being developed within an ARIES collaboration, and the magnet system.  
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DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-TUPAB200  
About • paper received ※ 19 May 2021       paper accepted ※ 23 June 2021       issue date ※ 17 August 2021  
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