Keyword: beam-diagnostic
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TUPO106 Mathematical Principle and Numerical Reconstruction in Real Space Measurement with a Rotating BPM pick-up, diagnostics, instrumentation, emittance 560
 
  • P. Jiang, Y. He, Z.J. Wang
    IMP/CAS, Lanzhou, People’s Republic of China
 
  It is difficult to measure beam profiles and monitor the beam during beam supply for high intensity high power accelerators. Based on the button pick-ups, the mathematical principle of a rotating BPM is proposed. SVD method is used to reconstruct the beam in x-y real space, and the basic parameters used in beam reconstruction are argued. The beam distribution in x-y real space is reconstructed well and compared to the reference beam. The beam reconstruction is sensitive to the electrode radius. The meshing and the grid numbers in the solution window have an import effect on the beam reconstruction.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-LINAC2018-TUPO106  
About • paper received ※ 12 September 2018      issue date ※ 18 January 2019  
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FR1A02 Bunch Length Measurements using Transverse Deflecting Systems FEL, diagnostics, electron, emittance 972
 
  • M. Hüning
    DESY, Hamburg, Germany
 
  Shorter and shorter bunch lengths (some 10 fs) require sophisticated bunch length measurent devices. Free electron lasers - but not only - use transverse deflecting systems. Employing suitable diagnostic tools measurements are not limited to bunch lengths but can be extended to longitudinal profiles and phase-space distributions, and slice emittances. Not only do successfully operated systems aid the commissioning and operation of FELs but they allow control over more sophisticated phase-space manipulations. The design and construction of such systems, actually operated at different RF frequencies, includes cavity design and fabrication, powerful RF systems, low level RF control, beam lines, diagnostics, and data analysis.  
slides icon Slides FR1A02 [6.054 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-LINAC2018-FR1A02  
About • paper received ※ 11 September 2018      issue date ※ 18 January 2019  
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