Status of Efforts to Improve the Transverse Properties of the Fermilab Booster

Recent changes in the injection beam line and the injection and extraction long straight sections of the Fermilab Booster have resulted in both larger apertures and simpler operation. These have facilitated further studies of the aperture limitations in the Booster. We will summarize our studies and results and indicate present aperture limitations. Operational benefits and transmission effects will be discussed.