QCD results from NuTeV and some remarks on target mass corrections

NuTeV is a precision Neutrino-Nucleon DIS experiment that took place at Fermilab in the 1996-97 fixed target run. Its unique design allowed us to obtain high statistics samples of separate $\nu$ and $\overline{\nu}$ beams. The kinematic range in $x$ goes from $0.01> x> 0.8$ with an average $Q^2\sim 20~GeV^2 $. We report here a new determination of $\alpha_S$ from scaling violations of the structure functions $F_2$ and $xF_3$ using NLO QCD models. The fit requires a correction for the target mass effect. This correction proved to create some confusion and we will also discuss this.