Evaluating Damping Ring Lattice Designs in Preparation
for Snowmass and an ILC Baseline Configuration Document

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Dynamic Aperture Simulation With Linear Wigglers

Using the lattices straight out of the box. Wiggler model is a series of alternating dipoles and includes none of the dynamic aperture limiting nonlinear dynamics from a realistic wiggler model. Injection point is taken to be element # 0 in each lattice, see Twiss parameters in Parameters Megatable. Injected normalized emittance of positrons = 0.01 m*rad. Dynamic aperture measured as amplitude out to which particles survive for 1 damping time.

Dynamic Aperture performed with Radiation Damping Off & Excitation Off:

Dynamic Aperture performed with Radiation Damping On & Excitation Off:

Dynamic Aperture performed with Radiation Damping On & Excitation On:

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Created May 24, 2005
Modified July 28, 2005