Title :
On the theory of coherent instabilities due to coupling between a dense cooled beam and charged particles from the residual gas
Author :
Pires, N. Alves ; Möhl, D. ; Orlov, Y. ; Pedersen, F. ; Poncet, A. ; van der Meer, S.
Author_Institution :
CERN, Geneva, Switzerland
Abstract :
The authors discuss intensity limitations due to ions trapped in the p¯-beam and assess antidotes which have recently been applied in the Antiproton Accumulator (AA) at CERN. They reexamine the theory and analyze Landau damping of dipole and quadrupole modes, stabilization by the appropriate choice of the working point, and ion clearing by shaking of the p¯-beam
Keywords :
particle beam diagnostics; proton accelerators; storage rings; AA; Antiproton Accumulator; CERN; Landau damping; antiproton beam shaking; charged particles; coherent instabilities; dense cooled beam; dipole modes; intensity limitations; ion clearing; ions; quadrupole modes; residual gas; Clouds; Damping; Differential equations; Ion beams; Optical coupling; Resonance; Resonant frequency; Tuning;
Conference_Titel :
Particle Accelerator Conference, 1989. Accelerator Science and Technology., Proceedings of the 1989 IEEE
Conference_Location :
Chicago, IL
DOI :
10.1109/PAC.1989.73254
