Performance of a correlator filter in betatron tune measurements and damping on the NSLS booster

Conference · Tue Oct 01 04:00:00 EDT 1985 · IEEE Trans. Nucl. Sci.; (United States)

OSTI ID:6399888

Galayda, J

A ''compensated correlator filter'', described by Kramer, et al. has been used for measurement and damping of betatron oscillations in the NSLS booster. The filter consists of a zero-degree power splitter, a 180-degree splitter, a length of 7/8'' air dielectric coaxial cable, and a short length of RG-58 cable. Connected to a beam position monitor, the output of the filter is proportional to the difference in transverse position of each bunch on subsequent turns. The useful bandwidth of the filter for damping rigid bunch oscillations extends from 10 MHz to 250 MHz, in contrast with the gigahertz bandwidth requirements for stochastic cooling, for which the filter was originally proposed. Attenuation of all rotation harmonics in this bandwidth is 40-60 dB.

• Research Organization: National Synchrotron Light Source, Brookhaven National Laboratory, Upton, NY
• OSTI ID: 6399888
• Report Number(s): CONF-850504-
• Conference Information: Journal Name: IEEE Trans. Nucl. Sci.; (United States) Journal Volume: NS-32:5
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
430303* -- Particle Accelerators-- Experimental Facilities & Equipment
ACCELERATORS
BEAM COOLING
BEAM DYNAMICS
BEAM MONITORS
BEAM POSITION
BEAM SPLITTING
BETATRON OSCILLATIONS
CYCLIC ACCELERATORS
DAMPING
FILTERS
FREQUENCY RANGE
MEASURING INSTRUMENTS
MEASURING METHODS
MHZ RANGE
MONITORS
NSLS
OSCILLATIONS
PERFORMANCE
RADIATION SOURCES
STOCHASTIC COOLING
SYNCHROTRON RADIATION SOURCES
SYNCHROTRONS