Nonlinear Acceptance

The task force web page is http://www.desy.de/~awolski/ILCDR/DRConfigurationStudy_files/Task1.htmThe task force divided the work into subtasks that were assigned to various people in May 2005. See http://www.desy.de/~awolski/ILCDR/DRConfigurationStudy_files/Task1_files/TaskForce1WorkPlan.pdf

The subtasks are calculations of

1. Frequency Map Analysis
2. Dynamic aperture for ideal lattices
3. Dynamic aperture with multipole errors
4. Dynamic aperture with nonlinear wiggler with and without multipole errors
5. Dynamic aperture with machine errors
6. Survivability of realistic positron distribution with and without physical apertures

Procedure for dynamic aperture comparison.

• Limit the search to the $2J_y=2J_x$ line.
• Use momentum range $-0.03 < \delta < 0.03$.
• Use synchrotron oscillation.
• Track for one damping time.