[en] A septum of improved design has replaced the standard tungsten septum with uniform thickness used in the deflector for the K1200 cyclotron at Michigan State University. A V-notch in the leading edge enhanced radiation cooling, and an increased septum thickness away from the median plane enhanced conduction of heat to the water cooled housing. Previously observed degradation of beam transmission attributed to thermally induced deformation of the septum was greatly improved with the new septum. The demonstrated power dissipation with an Ar beam was 900 W

[en] The Coupled Cyclotron Facility at MSU comprises two superconducting cyclotrons, the K500 (injector) and the K1200 (booster). Both cyclotrons are of the compact design with three hills and three dees in the valleys. The beam from the K500 is injected in the K1200 and stripped to a high charge state inside one of the dees of the cyclotron. The stripper mechanism consists of 31 foil holders attached to a bicycle chain, mounted on a moving platter. A complicated design was necessary to fit all the hardware necessary to do foil exchange in the tight space inside the dee. Five different hydraulic cylinders move the foil to the stripping position, exchange foils within the stripper chain, and position the foils in the loading position. We describe in the paper the mechanical design as well as the control programs developed for it