Transition Energy Crossing in Harmonic RF at Proton Synchrotron U-70

Abstract

Transition energy crossing at the U-70 proton synchrotron is studied. Motion stability is achieved through the method of transition energy jump at constant betatron tunes. The longitudinal motion is simulated with allowance for higher orders of the momentum compaction factor, along with various impedances and bunch intensities. Experimental data from an accelerator session are presented.