Y. Baconnier

European Organization for Nuclear Research

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Kurt Hübner

European Organization for Nuclear Research

R. Cappi

European Organization for Nuclear Research

J.P. Riunaud

European Organization for Nuclear Research

B. de Raad

European Organization for Nuclear Research

J. M. Jowett

European Organization for Nuclear Research

J.P. Potier

European Organization for Nuclear Research

J. Gareyte

European Organization for Nuclear Research

D. Möhl

European Organization for Nuclear Research

J.H.B. Madsen

European Organization for Nuclear Research

T. Taylor

European Organization for Nuclear Research

Cooperative Institutions

European Organization for Nuclear Research

107

SLAC National Accelerator Laboratory

Stanford University

Centre National de la Recherche Scientifique

Stanford Synchrotron Radiation Lightsource

Fermi National Accelerator Laboratory

Paul Scherrer Institute

Lawrence Berkeley National Laboratory

Commissariat à l'Énergie Atomique et aux Énergies Alternatives

Université Paris Cité

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Experiments on Beam Survival and Nonlinear Resonances in the CERN PS

Y. Baconnier B. de Raad C. Steinbach

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A drive beam injector for CLIC

Y. Baconnier

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Emittance control of the PS esup(+-) beams using a Robinson wiggler

Y. Baconnier R. Cappi J.P. Riunaud H.H. Umstaetter M. P. Level

Wiggler

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Septum magnets for the extraction channels of the 400 GeV SPS

Y. Baconnier Roger Bonvin Gabriela Corazza J.P. Dupin Andrew Holmes

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Electron Beam Dynamics in the CERN PS

IEEE Transactions on Nuclear Science (1983)

Y. Baconnier R. Cappi R. Garoby W. Hardt Kurt Hübner

The 28 GeV proton synchrotron (PS) forms part of the chain of LEP injectors with the rôle to accelerate positrons and electrons from 0.6 GeV, the operating energy of the Electron/Positron Accumulator (EPA), to 3.5 GeV, the positron/electron injection energy of CERN's 400 GeV proton synchrotron (SPS) which then accelerates the particles to 20 GeV. The PS used as an electron synchrotron has to supply the SPS with 8 bunches at an intensity of Nb = 8 × 109 particles per bunch. Bunch length and energy spread must be chosen carefully to avoid transverse and longitudinal single-bunch instabilities (turbulence) associated with high peak currents in the SPS. Analysis of the beam dynamics in the combined function lattice of the PS shows that this requirement can be fulfilled if the damning-partition numbers are changed. A Robinson Wiggler is proposed for this purpose and a new additional RF system is needed to produce the required bunch dimensions in longitudinal phase space.

Super Proton Synchrotron

Proton Synchrotron

Bunches

Wiggler

Electron cooling

10.1109/tns.1983.4332900

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A tau-charm factory laboratory in Spain combined with a synchrotron light source : a conceptual study

Y. Baconnier A. Hofmann T. Matthew Taylor Juan Antonio Rubio J P Delahaye

Charm (quantum number)

Factory (object-oriented programming)

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Large hadron collider in the LEP tunnel : a feasibility study of possible options

A. As̆ner E. Picasso Y. Baconnier N. Hilleret Julia Schmid

Superconducting Super Collider

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The SPS chromaticity and its correction with lumped sextupoles

Y. Baconnier Lyndon R Evans Amanda St. Hilaire M. Cornacchia J. Gareyte

Chromaticity

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A proposal for magnetic separators for proton-antiproton operation of the SPS

Y. Baconnier A. Warman

Antiproton

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High Intensity Phenomena Observed in the CPS

IEEE Transactions on Nuclear Science (1971)

Y. Baconnier J. Gareyte P Lefèvre

A review of high intensity phenomena observed in the CPS is presented. At injection an attempt is made to describe the combined effect of space charge and resonances, which result in a loss of 70% of the injected beam intensity and a reduction by a factor of 3 of the central core brilliance. Results of measurements on the effect of a localised bad vacuum are given. The situation at transition is briefly described. Seven different instabilities observed in the CPS in longitudinal or transverse phase plane are analysed. The compensation techniques are described in all cases. Whenever possible an attempt has been made to give some qualitative explanation of the mechanism.

Intensity

10.1109/tns.1971.4326270

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