A   B   C   D   E   F   G   H   I   J   K   L   M   N   O   P   Q   R   S   T   U   V   W   X   Y   Z  

Ambattu, P.K.

Paper Title Page
THP023 Crab Cavities for Linear Colliders 830
 
  • G. Burt, P.K. Ambattu, R.G. Carter, A.C. Dexter, M.I. Tahir
    Cockcroft Institute, Lancaster University, Lancaster
  • C. Adolphsen, Z. Li, A. Seryi, L. Xiao
    SLAC, Menlo Park, California
  • C.D. Beard, D.M. Dykes, P. Goudket, A. Kalinin, L. Ma, P.A. McIntosh
    STFC/DL/ASTeC, Daresbury, Warrington, Cheshire
  • L. Bellantoni, B. Chase, M. Church, T.N. Khabiboulline
    Fermilab, Batavia
  • R.M. Jones
    UMAN, Manchester
  • A. Latina, D. Schulte
    CERN, Geneva
 
 

Crab cavities have been proposed for a wide number of accelerators and interest in crab cavities has recently increased after the successful operation of a pair of crab cavities in KEK-B. In particular crab cavities are required for both the ILC and CLIC linear colliders for bunch alignment. Consideration of bunch structure and size constraints favours a 3.9 GHz superconducting, multi-cell cavity as the ILC solution, whilst bunch structure and beam-loading considerations suggest an X-band copper travelling wave structure for CLIC. These two cavity solutions are very different in design but share complex design issues. Phase stabilisation, beam loading, wakefields and mode damping are special issues for these crab cavities. Requirements and potential design solutions will be discussed for both colliders.

 
THP024 Initial Study on the Shape Optimisation of the CLIC Crab Cavity 833
 
  • P.K. Ambattu, G. Burt, R.G. Carter, A.C. Dexter
    Cockcroft Institute, Lancaster University, Lancaster
  • R.M. Jones
    UMAN, Manchester
  • P.A. McIntosh
    STFC/DL/ASTeC, Daresbury, Warrington, Cheshire
 
 

The CLIC linear collider will require a crab cavity to align bunches prior to collision. Consideration of the bunch structure leads us to favour the use of X-band copper cavities. Due to the large variation of train to train beam loading, it is necessary to minimise the consequences of beam loading. One solution is to use a travelling wave structure with a large group velocity allowing rapid propagation of amplitude errors from the system. Such a design makes this structure significantly different from previous travelling wave deflecting structures. This paper will look at the implications of this on other cavity parameters and the optimization of the cavity geometry.