イオンビーム多目的利用研究のための筑波大学6 MVタンデム型静電加速器

抄録

A new horizontal‐type 6 MV Pelletron tandem accelerator was designed and developed by the National Electrostatics Corp., USA in collaboration with the University of Tsukuba as part of the post‐quake reconstruction project. The main accelerator (model 18SDH‐2 Pelletron) is a dual acceleration electrostatic accelerator. The accelerator tank is 2.74 m in diameter and 10.5 m long. The generator operates reliably to terminal voltages as high as 6.5 MV. Stability is estimated to be better than 1 kV at a 6.0 MV terminal voltage. Maximum beam currents are predicted to be up to 3 μA for proton and 50 μA for heavy ions. It was installed at the University of Tsukuba in March 2014. We started routine experiments on ion beam applications by means of the new system since March 2016. The 6 MV Pelletron tandem accelerator will be used for various ion‐beam research projects, such as AMS, IBA, ion irradiation, and nuclear physics.