Relativistic ion acceleration with nanostructure targets supported by large-area suspended graphene

We discuss the relativistic ion acceleration by irradiating a nanostructure target with ultra- intense laser. The nanostructure target is mounted on a large-area suspended graphene (LSG), which is a novel solid target with remarkable features such as the thinnest, lightest, strongest, transparent, and reasonable, for laser ion acceleration. We have developed various types of targets such as nanometer thin gold, and other materials on LSG, and now carbon nanotube on LSG. This will enable us to access the unexplored regime, relativistic ions.日本物理学会 2020年秋季大