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Accelerator Seminar


"Simulations of Coherent Synchrotron Radiation and Wavelet Methodology."

Balsa Terzic,
NICADD, Northern Illinois University





When a charged particle beam traverses a curved trajectory, as is the case inside a bending magnet, it emits synchrotron radiation.  The synchrotron radiation emitted is both incoherent and coherent (CSR).  While the former largely cancels out, the latter often leads to adverse systematic effects which seriously degrade the beam's quality.

Proper understanding of CSR requires computational tools.  Due to the fact that the CSR is due to the beam's self-interaction, the computation of forces requires integration over the beam's history.  This is a daunting computational task, impossible to carry out without some approximations.  I present and compare two approaches:  Point-to-point and mean field.  After demonstrating superiority of the mean field approach, I present how the mean field simulations can be further improved in accuracy and efficiency using wavelet methodology.

A brief overview of wavelets and their advantages, both in the context of CSR simulations, and beyond is presented.


Thursday, June 4, 2009

3:30 p.m. - 4:30 p.m.
CEBAF Center Auditorium

Talk Slides: (Slides)

For more information, please contact Dr. Alex Bogacz or Anne-Marie Valente.