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Petracca, S.

Paper Title Page
TUPP030 A Formula for the Electron Cloud Map Coefficient in the Presence of a Magnetic Field 1601
 
  • T. Demma
    INFN/LNF, Frascati (Roma)
  • S. Petracca
    U. Sannio, Benevento
 
  The evolution of the electron density during multibunch electron cloud formation can be reproduced using a bunch-to-bunch iterative map formalism. The reliability of this formalism has been proved for RHIC* and LHC**. The coefficients that parameterize the map function are readily obtained by fitting the results of compute-intensive electron cloud simulations. An analytic expression for the linear map coefficient that describes weak cloud behaviour from first principles has been derivied for the case of staight sections of RHIC***. In this paper we generalize the model presented in *** to the case of electron cloud evolution in presence of a dipolar magnetic field and compare the results with numerical simulations.

*U. Iriso and S. Pegg. Phys. Rev. ST Accel. Beams 9, 071002 (2006).
**T. Demma et al. Phys. Rev. ST Accel. Beams 10,114401 (2007).
***U. Iriso and S. Pegg. Proc. of EPAC06, pp. 357-359.