Expected performance of the mm-wave isochronous FEL at the Duke storage ring

We propose to operate an isochronous mm-wave FEL at the Duke storage ring. Resonant FEL conditions for mm-waves will be provided by the off-axis interaction with an electromagnetic wave. The intracavity power of the mm-wave FEL could be used to pump a hard X-ray inverse Compton source with very high brightness. This is discussed in a separate contribution to these proceedings. Simulation results of mm-wave FEL operation on the Duke storage ring are discussed. The expected performance of a mm-wave FEL is presented.