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Frisch, J. C.

Paper Title Page
TUPPH019 Simulations for the LCLS Injector 260
 
  • Y. T. Ding, D. Dowell, P. Emma, J. C. Frisch, A. Gilevich, G. R. Hays, P. Hering, Z. Huang, R. H. Iverson, P. Krejcik, H. Loos, A. Miahnahri, J. F. Schmerge, J. L. Turner, W. E. White, J. Wu, C. Limborg-Deprey
    SLAC, Menlo Park, California
 
  The commissioning of the LCLS Injector has started this year. The electron beam quality for producing high power SASE X-rays is very challenging to reach. In this paper, we will describe comparisons between simulations made with multi-particle tracking code and electron beam measurements performed on the LCLS injector.  
WEAAU01 Commissioning Results of the SLAC LCLS Gun 276
 
  • R. Akre, J. Castro, P. Emma, J. C. Frisch, A. Gilevich, G. R. Hays, P. Hering, R. H. Iverson, P. Krejcik, C. Limborg-Deprey, H. Loos, A. Miahnahri, J. F. Schmerge, J. L. Turner, J. J. Welch, W. E. White, J. Wu, D. Dowell
    SLAC, Menlo Park, California
 
  The beam quality and operational requirements for the Linac Coherent Light Source (LCLS) currently being constructed at SLAC are exceptional, requiring the design of a new s-band RF photocathode gun for the electron source. Two guns (Gun1 and Gun2) have been fabricated and tested at high RF power. Gun1 was installed March 17, 2007 and began providing beams for the LCLS injector commissioning on April 5, 2007. Gun2 is reserved as a backup gun. The results and analysis of the gun’s performance in the LCLS injector will be presented.  
slides icon Slides  
WEPPH042 Bunch Length Monitors for Feedback in teh LClS Injector  
 
  • R. Akre, T. Borden, M. Cecere, P. Emma, R. Fuller, K. D. Kotturi, P. Krejcik, J. Langton, H. Loos, D. J. McCormick, T. M. Montagne, S. Peng, H. Shoaee, S. Smith, J. Wu, J. C. Frisch
    SLAC, Menlo Park, California
 
  The 250MeV Linac Coherent Light Source injector RF system requires feedback to meet its stability requirements. This feedback uses the beam energy and bunch length after the first bunch compressor to control the phase and amplitude of the preceding accelerator section. It is desirable that the energy and bunch length signals be available non-invasively, at the full 120Hz beam rate of the machine. The beam transverse position in the bunch compressor chicane provides a direct measure of the energy. Relative changes in bunch length are measured using coherent millimeter wave radiation sampled at different wavelengths.