SPS and LHC
Post kicker ripple excites transverse beam oscillation at still circulating beam while extracting beam from the SPS to the CNGS target and also transferring beam to the LHC. Without countermeasure, the CNGS target was not properly hit and beam in the LHC is blown up transversely. The beam oscillation can be sufficiently damped by operating the transvers dampers in a nonlinear regime.
» Home
Literature
- LHC Transverse Feedback Damping Efficiency, G. Kotzian, W. Höfle, E. Vogel, Proc. of EPAC08, Genoa, Italy, 2008
- Performance of the CERN SPS Fast Extraction for the CNGS Facility, E. Gaxiola, G. Arduini, W. Höfle, F. Roncarolo, E. Vogel, E. Vossenberg, 2005 Particle Accelerator Conference, Knoxville, Tennessee, May 16-20, 2005
- Damping of betatron oscillations in the SPS appearing at the two step extraction of CNGS beam, E. Vogel, W. Höfle, E. Gaxiola, CERN Report No. CERN-AB-2005-016-ABP (2005)
- Simulation of Transient Beam-Feedback Interaction and Application to Extraction of CNGS Beam from the SPS, E. Vogel, W. Höfle, (detailed version of EPAC 2004 contribution) 44 pages, CERN Report No. CERN-AB-2005-010 (2005)
- Simulation of Transient Beam-Feedback Interaction and Application to Extraction of CNGS Beam from the SPS, E. Vogel, W. Höfle, Ninth European Particle Accelerator Conference (EPAC 2004), Lucerne, Switzerland, 5-9 July 2004
- RF Amplitude Modulation to Suppress Longitudinal Coupled Bunch Instabilities in the SPS, E. Vogel, T. Bohl, U. Wehrle, Ninth European Particle Accelerator Conference (EPAC 2004), Lucerne, Switzerland, 5-9 July 2004