Keyword: controls
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MOPSPP006 SPOCK - a Triode DC Electron Gun With Variable Extraction Gradient ion, cathode, emittance, electron 13
 
  • L.M. Hein, K. Aulenbacher, V. Bechthold, M.A. Dehn, S. Friederich, C. Matejcek
    IKP, Mainz, Germany
 
  Funding: German Federal Ministry of Education and Research (BMBF project HOPE-II FKZ 05K16UMA) and the Cluster of Excellence "PRISMA
The electron source concept SPOCK (Short Pulse Source at KPH) is a 100kV DC source design with variable extraction gradient. Due to its triode inspired design the extraction gradient can be reduced for e.g. investigations of cathode physics, but also enhanced to mitigate space charge effects. In the framework of the MESA-Project (Mainz Energy-Recovering Superconducting Accelerator) its design has been further optimized to cope with space charge dominated electron beams. Although it injects its electron beams directly into the LEBT matching section, which excludes any adjustments of the electron spin, the source SPOCK will allow higher bunch charges than the MESA standard source.
 
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ERL2017-MOPSPP006  
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THIBCC005 Development of an ERL RF Control System ion, cavity, feedback, cryomodule 70
 
  • S. Orth, D. Domont-Yankulova, H. Klingbeil
    TEMF, TU Darmstadt, Darmstadt, Germany
 
  Funding: Work supported by Deutsche Forschungsgemeinschaft (DFG): GRK 2128 "AccelencE"
The Mainz Energy-recovering Superconducting Accelerator (MESA), currently under construction at Johannes Gutenberg-Universität Mainz, requires a newly designed digital low-level radio frequency (LLRF) system. Challenging requirements have to be fulfilled to ensure high beam quality and beam parameter stability. First, the layout with two recirculations and the requirements will be shown from an LLRF point of view. Afterwards, different options for the control system are presented. This includes the generator-driven system, the self-excited loop and classical PID controller as well as more sophisticated solutions.
 
slides icon Slides THIBCC005 [4.062 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ERL2017-THIBCC005  
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FRIBCC004 ERL17 Workshop, WG4 Summary: Superconducting RF ion, cavity, resonance, HOM 81
 
  • F. Gerigk
    CERN, Geneva, Switzerland
  • I. Ben-Zvi
    BNL, Upton, Long Island, New York, USA
 
  Working Group 4 consisted of 10 talks, which were split into three sessions around four main themes. These themes will be listed and summarized in the following along with a summary of the discussion session.  
slides icon Slides FRIBCC004 [0.592 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ERL2017-FRIBCC004  
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