Engineering study of a 10 MeV heavy ion linear accelerator

LBLs Lawrence Berkeley Laboratory´s Heavy Ion Fusion Accelerator Research group has completed the engineering study of the Induction Linac Systems Experiment (ILSE). ILSE will address nearly all accelerator physics issues of a scaled heavy-ion induction linac inertial-fusion pellet driver. Designed as a series of subsystem experiments, ILSE will accelerate 16 parallel carbon ion beams from a 2-MeV injector presently under development to 10 MeV at 1 μs. The physics and engineering requirements are presented, and conceptual design approaches for building ILSE are described. Major ILSE subsystems comprise electrostatic focusing quadrupole matching and accelerating sections, a sixteen- to four-beam transverse combining section, a four-beam magnetic focusing quadrupole accelerating section, a single-beam 180° bend section, a drift compression section, and a final focus and target chamber. Also discussed are vacuum and alignment, diagnostics/data acquisition, and controls. Plans for further development are considered