  A high-brilliance ($\sim10^{24}$~photon.s$^{-1}$.mm$^{-2}$.mrd$^{-2}$/0.1\%)
gamma-ray source experiment is currently being planned at Fermilab
($E_\gamma\simeq 1.1$~MeV)~[1]. The source implements a high-repetition-rate
inverse Compton scattering by colliding electron bunches formed in a 300-MeV
superconducting linac with a high-intensity laser pulse. This paper describes
the design rationale along with some of technical challenges associated to
producing high-repetition-rate collision. The expected performances of the
gamma-ray source are also presented.
