Title :
Coherent betatron instability driven by electrostatic separators-stability analysis of the Tevatron
Author :
Harfoush, F.A. ; Bogacz, S.A.
Author_Institution :
Fermi Nat. Accel. Lab., Batavia, IL, USA
Abstract :
Possible intensity limits due to the coherent betatron motion are outlined for the upgraded Tevatron with electrostatic separators. Numerical simulations show that this new vacuum chamber structure dominates the high-frequency part of the coupling impedance spectrum and is likely to excite a slow head-tail instability. A simple stability analysis yields the characteristic growth time of the unstable modes
Keywords :
beam handling equipment; particle beam diagnostics; proton accelerators; synchrotrons; Tevatron; coherent betatron instability; coherent betatron motion; coupling impedance spectrum; electrostatic separators; growth time; intensity limits; slow head-tail instability; stability analysis; unstable modes; vacuum chamber structure; Density functional theory; Electrostatic analysis; Equations; Frequency; Geometry; Impedance; Magnets; Monitoring; Particle separators; Stability analysis;
Conference_Titel :
Particle Accelerator Conference, 1989. Accelerator Science and Technology., Proceedings of the 1989 IEEE
Conference_Location :
Chicago, IL
DOI :
10.1109/PAC.1989.73385
