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Heimann, P. A.

Paper Title Page
TUPMS002 Successful Completion of the Femtosecond Slicing Upgrade at the ALS 1194
  • C. Steier, P. A. Heimann, S. Marks, D. Robin, R. W. Schoenlein, W. Wan
    LBNL, Berkeley, California
  • W. Wittmer
    SLAC, Menlo Park, California
  Funding: This work was supported by the Director, Office of Science, Office of Basic Energy Sciences, U. S. Department of Energy under Contract No. DE-AC02-05CH11231.

An upgraded femtosecond slicing facility has been commissioned successfully at the Advanced Light Source. In contrast to the original facility at the ALS which pioneered the concept, the new beamline uses an undulator (the first in-vacuum undulator at the ALS) as the radiator producing the user photon beam. To spatially separate the femtosecond slices in the radiator, a local vertical dispersion bump produced with 12 skew quadrupoles is used. The facility was successfully commissioned during the last 1.5 years and is now used in routine operation.