The application of mild titanium gettering in the Doublet III tokamak has led to a significant improvement in the obtainable operating regimes and discharge parameters for all of the many plasma cross-sectional shapes studied. With gettering, low-Z impurities and radiated power are greatly reduced. The maximum line average electron density has increased 50% (?emax ∠1×1020/m3), corresponding to a Murakami coefficient of nearly six.