Author: Masi, A.
Paper Title Page
MOPJE037 Study and Comparison of Mode Damping Strategies for the UA9 Cherenkov Detector Tank 366
 
  • A. Danisi, F. Caspers, R. Losito, A. Masi, B. Salvant, C. Vollinger
    CERN, Geneva, Switzerland
  • T. Demma, P. Lepercq
    LAL, Orsay, France
  
  In the framework of the UA9 experiment, the Cherenkov detector is useful to measure the amount of particles deflected by a bent crystal, proving the crystal collimation principle. The tank used to host this device is taken as a case study for an in-depth analysis of different damping strategies for electromagnetic modes which otherwise would give rise to important beam-coupling impedance contributions. Such strategies involve the use of ferrite, damping resistors and a mode-coupler, a solution which intercepts the modes inside the cavity but damps the related power outside the vacuum tank (potentially avoiding heating). Such solutions are discussed through experimental measurements and the relative quality factor is taken as a figure of merit.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2015-MOPJE037  
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THPF090 Status and Plans for the Upgrade of the CERN PS Booster 3905
 
  • K. Hanke, D. Aguglia, M.E. Angoletta, W. Bartmann, C. Bedel, E. Benedetto, S. Bertolasi, C. Bertone, J. Betz, T.W. Birtwistle, A. Blas, J. Borburgh, C. Bracco, A.C. Butterworth, E. Carlier, S. Chemli, P. Dahlen, A. Dallocchio, G.P. Di Giovanni, T. Dobers, A. Findlay, R. Froeschl, A. Funken, S. Gabourin, J.L. Grenard, D. Grenier, J. Hansen, D. Hay, J.-M. Lacroix, P. Le Roux, L.A. Lopez Hernandez, C. Martin, A. Masi, B. Mikulec, Y. Muttoni, A. Newborough, D. Nisbet, M.R. Obrecht, M.M. Paoluzzi, S. Pittet, B. Puccio, J. Tan, J. Vollaire, W.J.M. Weterings
    CERN, Geneva, Switzerland
  
  CERN’s Proton Synchrotron Booster (PSB) is undergoing a major upgrade program in the frame of the LHC Injectors Upgrade (LIU) project. During the first long LHC shutdown (LS1) some parts of the upgrade have already been implemented, and the machine has been successfully re-commissioned. More work is planned for the upcoming end-of-year technical stops, notably in 2016/17, while most of the upgrade is planned to take place during the second long LHC shutdown (LS2). We report on the upgrade items already completed and commissioned, the first Run 2 beam performance and give a status of the ongoing design and integration work.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2015-THPF090  
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