Ion source of multiply charged C60 fullerene and fullerene linear accelerator

Production and acceleration system of multiply charged C60 and C70 fullerene ions are being designed for basic studies on cluster physics. Multiply charged fullerene ions are produced by electron impacts. Ions selected by the analyzing magnet are accelerated up to 100 kV through an acceleration column. The ion source generates C60+(8.4 nA), C602+(4.5 nA), C603+(1.6 nA). C60+, C602+, and C603+ are accelerated up to 100, 200, and 300 keV, respectively. The alternating phase focus (APF)-interdigital H-mode (IH) linac was designed to accelerate C60+ ion (e=1/720) and C70+ ion (e=1/840) from 0.2 to 3.2 keV/amu with an APF and an operation frequency of 10 MHz.