Author: Aiba, M.
Paper Title Page
WEXGBE1 Review of Top-up Injection Schemes for Electron Storage Rings 1745
 
  • M. Aiba
    PSI, Villigen PSI, Switzerland
 
  Top-up operation, which nowadays is standard for lepton colliders and synchrotron light sources, has been developed over last decades. The accelerator performances have been drastically improved through top-up operation. However, future electron storage rings are designed, aiming at further high performance, to operate with strong nonlinear magnetic fields that may restrict their dynamic aperture. Consequently, the conventional off-axis injection and accumulation may become impossible. New injection schemes have been proposed and under development to overcome the difficulties and limitations expected in these machines. This paper reviews top-up injection schemes, including novel ideas recently proposed.  
slides icon Slides WEXGBE1 [3.589 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2018-WEXGBE1  
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THPMK029 Towards an Upgrade of the Swiss Light Source 4358
 
  • A. Streun, M. Aiba, M. Böge, T. Garvey, V. Schlott
    PSI, Villigen PSI, Switzerland
 
  An upgrade of the Swiss Light Source (SLS) is planned for the period 2021-24. The existing 12-TBA (triple bend achromat) lattice will be exchanged by a 12-7BA (7-bend achromat) lattice in order to reduce the emittance from present 5.5 nm down to about 125 pm at 2.4 GeV / 400 mA (IBS included). The new lattice is based on longitudinal gradient bends and reverse bends to realize low emittance despite the small circumference of 290 m. A conceptual design has been established. We present project status, lattice design and work in progress with emphasis on beam dynamics issues.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2018-THPMK029  
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