Heavy Ion Linac for Synchrotron Injectors

The heavy ion high intensity injector linacs for rings are characterized by a low duty cycle and by high beam intensities. Main disadvantages are the very low particle velocity after passing the extraction system and terminal as well as the high voltages needed to accelerate heavy ions to a specified energy per nucleon. Especially for a low energy acceleration part the H-mode cavity design has some advantages. An overview of ion sources, 4-rod Radio Frequency Quadrupoles (RFQs) and room temperature H-mode cavities will be given. Specific features like the beam quality, the efficiency, the beam dynamic and energy schemes will be discussed.