Author: Ellison, J.A.
Paper Title Page
WEP139 Comparison of 1D and 2D CSR Models with Application to the Fermi@Elettra Bunch Compressors 1743
 
  • G. Bassi
    BNL, Upton, New York, USA
  • J.A. Ellison, K.A. Heinemann
    UNM, Albuquerque, New Mexico, USA
 
  Funding: Work partially supported by DOE grant DE-FG02-99ER41104
We compare our 2D mean field (Vlasov-Maxwell) treatment of coherent synchrotron radiation (CSR) effects with 1D approximations of the CSR force which are commonly implemented in CSR codes. In our model we track particles in 4D phase space and calculate 2D forces*. The major cost in our calculation is the computation of the 2D force. To speed up the computation and improve 1D models we also investigate approximations to our exact 2D force. Preliminary results are encouraging**. As an application, we present numerical results for the LCLS bunch compressors, where recently detailed measurements of the CSR-induced energy loss and transverse emittance growth have been performed and compared with numerical calculations***.
* Phys. Rev. ST Accel. Beams 12, 080704 (2009)
** http://www.lnf.infn.it/conference/uBI10/
*** Phys. Rev. ST Accel. Beams 12, 030704 (2009)