  The Integrable Optics Test Accelerator at Fermilab will explore beam dynamics
in a ring with intense space-charge using 2.5 MeV proton beams with an
incoherent tune shift approaching -0.5. We will use this machine to explore the
interplay between electron cooling, intense space-charge, and coherent
instabilities. In this contribution, we describe the machine setup including
the design of the electron cooler and the lattice, list specific experiments
and discuss the results of numerical simulations which include the effects of
electron cooling and transverse space-charge forces.
