  The color coherence effects in the medium modification to the initial state
radiation are studied via a simple setup which allows these effects to be
pronounced. The medium-induced gluon radiation spectrum off a hard quark which
suffers a highly virtual photon scattering and subsequently crosses a dilute
QCD medium of finite size is obtained. The angular distribution of the
medium-induced gluon radiation spectrum is modified when the interference
contributions between the incoming and outgoing quarks at a finite scattering
angle are included.
