WEPM2Y —  Parallel Session   (06-Jul-16   14:25—14:50)
Chair: Y. He, IMP/CAS, Lanzhou, People's Republic of China
Paper Title Page
WEPM2Y01 Model Benchmark With Experiment at the SNS Linac 1
 
  • A.P. Shishlo, A.V. Aleksandrov, M.A. Plum
    ORNL, Oak Ridge, Tennessee, USA
  • Y. Liu
    ORNL RAD, Oak Ridge, Tennessee, USA
  
  Funding: ORNL/SNS is managed by UT-Battelle, LLC, for the U.S. Department of Energy under contract DE-AC05-00OR22725.
The history of attempts to perform a transverse matching in the SNS superconducting linac (SCL) is discussed. The SCL has 9 laser wire (LW) stations to perform nondestructive measurements of the transverse beam profiles. Any matching starts with the measurement of the initial Twiss parameters which in the SNS case was done by using the first four LW stations at the beginning of the superconducting linac. For years the consistency between all LW stations data could not be achieved. This problem was resolved only after significant improvements in accuracy of the phase scans of the SCL cavities, more precise analysis of all available scan data, better optics planning, and the initial longitudinal Twiss parameters measurements. The presented paper discusses in details these developed procedures. 		 
slides icon Slides WEPM2Y01 [2.820 MB]