Author: Anderson, S.G.
Paper Title Page
WEPFI077 LLNL X-band Test Station Status 2872
 
  • R.A. Marsh, F. Albert, G.G. Anderson, S.G. Anderson, C.P.J. Barty, E.T. Dayton, S.E. Fisher, D.J. Gibson, F.V. Hartemann, S.S.Q. Wu
    LLNL, Livermore, California, USA
 
  Funding: This work performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344
In support of Compton scattering gamma-ray source efforts at LLNL, a multi-bunch test station is being developed to investigate accelerator optimization for future upgrades. This test station will enable work to explore the science and technology paths required to boost the current mono-energetic gamma-ray technology a higher effective repetition rate, potentially increasing the average gamma-ray brightness by two orders of magnitude. The test station will consist of a 5.5 cell X-band rf photoinjector, single accelerator section, and beam diagnostics. Detailed design of the test station including is complete, and will be presented with modeling simulations and future upgrade paths. The current status of the installation will also be discussed with future commissioning plans.
 
 
WEPFI078 LLNL X-band RF System 2875
 
  • R.A. Marsh, G.G. Anderson, S.G. Anderson, C.P.J. Barty, S.E. Fisher, D.J. Gibson, F.V. Hartemann
    LLNL, Livermore, California, USA
 
  Funding: This work performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344
An X-band test station is being developed at LLNL to investigate accelerator optimization for future upgrades to mono-energetic gamma-ray technology at LLNL. The test station will consist of a 5.5 cell X-band rf photoinjector, single accelerator section, and beam diagnostics. The high power RF for the test station will be provided by a SLAC XL4 11.424 GHz klystron driven by a ScandiNova solid state modulator. The high power system has been installed and results of initial testing into high power loads will be presented. Performance of the system with respect to processing and stability will be discussed as well as future plans for the low level RF system.
 
 
WEPFI088 High-power Tests of an Ultra-high Gradient Compact S-band (HGS) Accelerating Structure 2902
 
  • L. Faillace, R.B. Agustsson, P. Frigola, A.Y. Murokh, S. Seung
    RadiaBeam, Santa Monica, USA
  • S.G. Anderson
    LLNL, Livermore, California, USA
  • V.A. Dolgashev
    SLAC, Menlo Park, California, USA
  • J.B. Rosenzweig
    UCLA, Los Angeles, California, USA
  • V. Yakimenko
    BNL, Upton, Long Island, New York, USA
 
  RadiaBeam Technologies reports on the RF design, fabrication and high-power tests of a ultra-high gradient S-Band accelerating structure (HGS) operating in the pi-mode at 2.856 GHz. The compact HGS structure offers a drop-in replacement for conventional S-Band linacs in research and industrial applications such as drivers for compact light sources, medical and security systems. The electromagnetic design (optimization of the cell shape in order to maximize RF efficiency and minimize surface fields at very high accelerating gradients) has been carried out with the codes HFSS and SuperFish while the thermal analysis has been performed by using the code ANSYS. The high-power conditioning was carried out at Lawrence Livermore National Laboratory (LLNL).