Title :
Studies of coupled-bunch modes in the Fermilab Booster
Author :
Harkay, K.C. ; Bharadwaj, V.K. ; Colestock, P.L.
Abstract :
Modeling the coupled-bunch motion and calculating the instability growth rates using the measured longitudinal impedance are described. Also described are the dipole and higher-order form factors, which give the beam response as a function of frequency, and, as such, scale the effective electromagnetic force on the beam due to a given impedance. The results show a good correspondence with the data and will potentially impact feedback system and mode damper design.<>
Keywords :
particle beam diagnostics; proton accelerators; synchrotrons; Fermilab Booster; beam response; coupled-bunch motion; effective electromagnetic force; feedback system; higher-order form factors; instability growth rates; longitudinal impedance; mode damper; particle beam diagnostics; Beams; Brightness; Damping; Feedback; Impedance measurement; Laboratories; Optical coupling; Radio frequency; Shock absorbers; Synchrotrons;
Conference_Titel :
Particle Accelerator Conference, 1991. Accelerator Science and Technology., Conference Record of the 1991 IEEE
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
0-7803-0135-8
DOI :
10.1109/PAC.1991.164792
