**L. Emery, V. Sajaev, A. Xiao**

*Advanced Photon Source*

**3 October 2005**

This document lists the calculations performed by APS and Fermilab staff on
reference ILC damping rings for the ILC damping ring working group.
The Working Group was divided into ten task forces, whose links can be followed in
`http://www.desy.de/~awolski/ILCDR/DRConfigurationStudy.htm`:

- Nonlinear acceptance
- Vertical emittance tuning
- Classical instabilities
- Space charge effects
- Kicker Technology and Alternative Injection/Extraction Schemes
- Electron-Cloud Effects
- Fast-Ion Effects
- Initial Comparative Cost Estimates
- Studies of Tolerable Beam Losses
- Preservation of Polarization
- Pre-Damping Ring Studies

So far we have done calculations on the nonlinear acceptance (task force #1). The other sections are empty but listed as we may make contributions in the future in the future.

An other interesting area of research is multiple-objective optimization of the damping ring in general using genetic algorithms. This section follows the task force sections.

- Nonlinear Acceptance
- Frequency Map Analysis
- Dynamic aperture for ideal lattices
- Dynamic aperture with multipole errors
- Dynamic aperture with nonlinear wiggler with and without multipole errors
- Dynamic aperture with machine errors
- Realistic positron distribution with and without physical apertures

- Vertical Emittance Correction
- Classical Instabilities
- Space Charge Effects
- Kicker Technology
- Electron Cloud
- Fast Ion Effects
- Cost Estimates
- Tolerable Beam Losses
- Polarization Preservation
- Predamping Ring
- Multi-Objective Optimization
- Bibliography
- About this document ...