  Beyond the attractive strong potential needed for hadronic bound states,
strong interactions are predicted to provide repulsive forces depending on the
color charges involved. The repulsive interactions could in principle serve for
particle acceleration with highest gradients in the order of GeV/fm. Indirect
evidence for repulsive interactions have been reported in the context of heavy
meson production at colliders. In this contribution, we sketch a thought
experiment to directly investigate repulsive strong interactions. For this we
prepare two quarks using two simultaneous deep inelastic scattering processes
off an iron target. We discuss the principle setup of the experiment and
estimate the number of electrons on target required to observe a repulsive
effect between the quarks.
