Performance of the AGS transition jump system

The transition jump system has been indispensable to the high intensity proton operation of the AGS complex. Nevertheless, transition crossing remains one of the major hurdles as the accelerator complex intensity is pushed upward. To enhance the performance of the system “quadrupole pumping” in the Booster is used to minimize the necessary longitudinal dilution of the beam on the AGS injection porch. During the transition jump sextupole correctors at strategic locations are pulsed to minimize the effects of the chromatic nonlinearity of the jump system. The available instrumentation for diagnosing the performance of the system will be described, along with performance at the recent record beam intensities