The Top Quark at Linear Colliders: QCD Corrections

We present a computation of QCD next-to-leading order corrections to the top production and decay process at linear colliders. The top quarks are allowed to be off-shell and the production and decay subprocesses are treated together, thus allowing for interference effects. Real gluon radiation effects as well as virtual corrections are evaluated. The framework employed for this computation is the double pole approximation (DPA).The results discussed include studies of the gluon radiation properties, interference between production- and decay- stage radiation, and top mass reconstruction.