Title :
A Second Harmonic (6-16 MHz) RF System with Feedback-Reduced Gap Impedance for Accelerating Flat-Topped Bunches in the CERN PS Booster
Author :
Baillod, J.M. ; Magnani, L. ; Nassibian, G. ; Pedersen, F. ; Weissflog, W.
Author_Institution :
CERN, 1211 Geneva 23, Switzerland
Abstract :
Since all experimental and theoretical evidence indicates that the beam intensity in the PSB is at present limited by the Laslett Q shift after trapping, a second harmonic accelerating system is being added with the aim of producing flat-topped bunches. Calculations indicate that the resulting improvement in bunching factor should permit an intensity increase of 25 to 40 %. Additionally, the bucket area is increased by 25 to 45 % depending on intensity.
Keywords :
Acceleration; Broadband amplifiers; Damping; Feedback; Impedance; Particle beams; Radio frequency; Shape; Space charge; Voltage;
Journal_Title :
Nuclear Science, IEEE Transactions on
DOI :
10.1109/TNS.1983.4336704