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U.S. Department of Energy
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Initial operation of SSRL wiggler in spear

Conference ·
OSTI ID:6265134
A 3 lambda planar, magnetic wiggler has been designed, built, installed and operated in the SPEAR storage ring. Its primary purpose is to provide tunable synchrotron radiation (SR) with a higher energy and intensity than previously available for a new SR beam line just commissioned at the Stanford Synchrotron Radiation Laboratory. Because the magnet operates from 0-18 kG, it should also produce undulator radiation (UR). Since the wiggler influences storage ring operation in both single beam and colliding beam modes, measurements were made of tune changes, emittance changes and energy spreads which are compared to predictions. Significant improvements in luminosity for high energy physics experiments were observed. The ability to do x-ray experiments easily that were not previously feasible at low electron beam energies and currents has also been demonstrated. The basic design, some interesting characteristics of the magnetic measurements and initial operating experience and results are discussed.
Research Organization:
Stanford Univ., CA (USA)
DOE Contract Number:
EY-76-C-03-0515
OSTI ID:
6265134
Report Number(s):
SLAC-PUB-2289; CONF-790327-125
Country of Publication:
United States
Language:
English