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Farvacque, L.

Paper Title Page
WEPCH011 Optimisation of a New Lattice for the ESRF Storage Ring 1942
 
  • A. Ropert, L. Farvacque
    ESRF, Grenoble
  
  The installation of canted undulators in some of the straight sections of the ESRF storage ring is envisaged in the future. In order to free maximum space in the straight sections and minimise the reduction in length of the undulators, a new lattice, in which the straight section quadrupole triplets are replaced by doublets, is being studied. The paper describes the main features of the lattice and presents the experimental results achieved so far.  
WEPCH141 Accelerator Physics Code Web Repository 2254
 
  • F. Zimmermann, R. Basset, E. Benedetto, U. Dorda, M. Giovannozzi, Y. Papaphilippou, T. Pieloni, F. Ruggiero, G. Rumolo, F. Schmidt, E. Todesco
    CERN, Geneva
  • D.T. Abell
    Tech-X, Boulder, Colorado
  • R. Bartolini
    Diamond, Oxfordshire
  • O. Boine-Frankenheim, G. Franchetti, I. Hofmann
    GSI, Darmstadt
  • Y. Cai, M.T.F. Pivi
    SLAC, Menlo Park, California
  • Y.H. Chin, K. Ohmi, K. Oide
    KEK, Ibaraki
  • S.M. Cousineau, V.V. Danilov, J.A. Holmes, A.P. Shishlo
    ORNL, Oak Ridge, Tennessee
  • L. Farvacque
    ESRF, Grenoble
  • A. Friedman
    LLNL, Livermore, California
  • M.A. Furman, D.P. Grote, J. Qiang, G.L. Sabbi, P.A. Seidl, J.-L. Vay
    LBNL, Berkeley, California
  • D. Kaltchev
    TRIUMF, Vancouver
  • T.C. Katsouleas
    USC, Los Angeles, California
  • E.-S. Kim
    PAL, Pohang, Kyungbuk
  • S. Machida
    CCLRC/RAL/ASTeC, Chilton, Didcot, Oxon
  • J. Payet
    CEA, Gif-sur-Yvette
  • T. Sen
    Fermilab, Batavia, Illinois
  • J. Wei
    BNL, Upton, Long Island, New York
  • B. Zotter
    Honorary CERN Staff Member, Grand-Saconnex
  
  In the framework of the CARE HHH European Network, we have developed a web-based dynamic accelerator-physics code repository. We describe the design, structure and contents of this web repository, illustrate its usage, and discuss our future plans.  
THPLS011 Operation and Recent Development at the ESRF 3290
 
  • J.-L. Revol, J.C. Biasci, J-F. B. Bouteille, J. Chavanne, P. Elleaume, L. Farvacque, L. Hardy, J. Jacob, G.A. Naylor, E. Plouviez, A. Ropert, K.B. Scheidt
    ESRF, Grenoble
  
  We report on the achieved performance of the ESRF storage ring as well as developments accomplished or underway. A new hybrid filling mode based on groups of bunches and a 4-bunch filling pattern are now delivered to the users. Following the increasing demand of users for beam stability, the fast orbit feedback has been upgraded. The installation of 5 m-long, 8 mm vertical aperture NEG coated aluminum chambers is progressing at a rate of one chamber per shutdown. The increase in current from 200 to 300 mA is being prepared; however, operation in this mode is still impaired by HOM driven longitudinal instabilities. To overcome this difficulty, a longitudinal feedback is being commissioned. HOM damped cavities are also under study to possibly replace the existing five-cell cavities. The policy of preventive maintenance has been continued. However, in 2005 the machine availability was affected by water leaks occurring on front-end absorbers and on one dipole crotch absorber. The crotch absorbers suffer all from the same erosion process that could be delayed by a systematic vertical realignment, leaving time for procurement and replacement of the entire pool.