A   B   C   D   E   F   G   H   I   J   K   L   M   N   O   P   Q   R   S   T   U   V   W   X   Y   Z  

Mok, W. Y.

Paper Title Page
FRPMS065 Bunch Length Measurements in SPEAR3 4159
  • W. J. Corbett, A. S. Fisher, X. Huang, J. A. Safranek, J. J. Sebek
    SLAC, Menlo Park, California
  • A. H. Lumpkin
    ANL, Argonne, Illinois
  • W. Y. Mok
    Life Imaging Technology, Palo Alto, California
  Funding: Work supported by US Department of Energy Contract DE-AC03-76SF00515 and Office of Basic Energy Sciences, Division of Chemical Sciences.

In the nominal SPEAR3 storage ring optics, the natural radiation pulse length is 40ps fwhm per bunch. Due to the double-bend achromat lattice configuration, it is relatively straightforward to reduce the momentum compaction factor (α) and hence reduce the bunch length by modest values. In this paper we present streak camera measurements of the bunch length in the nominal optics, and with ~α/20 and α/50 optics as a function of single-bunch current. The results demonstrate <10ps fwhm radiation pulses with up 5x108 particles/bunch (~100μ amp). Radiation pulse power, bunch length scaling and broadband impedance estimates are discussed.