Engineering study of a 10 MeV heavy ion linear accelerator

Abstract

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 mu s. 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 degrees 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. >