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Bunch Length and Impedance Measurements at SPEAR3

Conference · · Conf.Proc.C0806233:tupp028,2008
OSTI ID:1028696
Streak camera measurements were made at SPEAR3 to characterize longitudinal coupling impedance. For the nominal optics, data was taken at three rf voltages and a single-bunch current range of 0-20mA. Both bunchcentroid phase shift and bunch lengthening were recorded to extract values for resistive and reactive impedance. An (R+L) and a Q=1 model were then back-substituted into the Haissinski equation and compared with raw profile data. In the short bunch (low-{alpha}) mode, distribution 'bursting' was observed.
Research Organization:
SLAC National Accelerator Laboratory (SLAC)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC02-76SF00515
OSTI ID:
1028696
Report Number(s):
SLAC-PUB-14675
Conference Information:
Journal Name: Conf.Proc.C0806233:tupp028,2008
Country of Publication:
United States
Language:
English

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