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Safranek, J.A.

Paper Title Page
RPAT081 Initial Scraper Measurements in SPEAR 3
 
  • W.J. Corbett, J.A. Safranek, A. Terebilo
    SLAC, Menlo Park, California
  
  Funding: Work supported by Department of Energy Contract DE-AC03-76SF00515 and Office of Basic Energy Sciences, Division of Chemical Sciences.

Horizontal and vertical scraper assemblies have been installed in a standard straight section of SPEAR 3 (beta-x=10.2 m, beta-y=4.8 m, epsx=18 nm-rad, 0.1% coupling). Each scraper has stepper motor accuracy and transductor resolution on the order of 1 micron and a MATLAB/EPICS interface to simplify data acquisition. In this paper we present initial scraper measurements and analysis of the results. Of particular importance are comparison of measured dynamic aperture and momentum acceptance with model and measurement of vertical acceptance for future beam lines.