  Fermilab's Integrable Optics Test Accelerator is an electron storage ring
designed for testing advanced accelerator physics concepts, including
implementation of nonlinear integrable beam optics and experiments on optical
stochastic cooling. The machine is currently under construction at the Advanced
Superconducting Test Accelerator facility. In this report we present the goals
and the current status of the project, and describe the details of machine
design. In particular, we concentrate on numerical simulations setting the
requirements on the design and supporting the choice of machine parameters.
