A search for coupled-bunch instability in the Fermilab Main Injector

Author

Bhat, C.M.

Author_Institution

Fermi Nat. Accel. Lab., Batavia, IL, USA

Volume

3

fYear

2001

fDate

2001

Firstpage

1933

Abstract

In the Fermilab Main Injector (MI) we are planning to double the bunch intensity from its design value by slip stacking. The accelerator consists of 18 rf cavities which operate at a harmonic number of 588. These cavities are known to have many higher ordered resonances. The longitudinal coupled-bunch instability, induced by the excitation of the rf cavities, may be an important issue to be addressed in the intensity upgrade. Here we have carried out some simulation studies of the longitudinal coupled bunch instability to investigate bunch intensity limits. The results are presented in this paper

Keywords

accelerator RF systems; accelerator cavities; particle beam bunching; particle beam dynamics; particle beam injection; particle beam stability; proton accelerators; proton beams; synchrotrons; Fermilab Main Injector; bunch intensity limits; coupled bunch instability; coupled-bunch instability; harmonic number; higher ordered resonances; longitudinal coupled-bunch instability; radiofrequency cavities; slip stacking; Damping; Energy storage; Impedance; Optical coupling; Particle beams; Proposals; Protons; Resonance; Stacking; Synchrotrons;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 2001. PAC 2001. Proceedings of the 2001

Conference_Location

Chicago, IL

Print_ISBN

0-7803-7191-7

Type

conf

DOI

10.1109/PAC.2001.987232

Filename

987232