Development of a compact microbeam system Shigeo Matsuyama, Kentaro Kojima, Kyoka Maruta, Misako Miwa, Sho Toyama, Wataru Kada, Yohei Kikuchi, Ayumi Nakatsuma, Takumi Matsumoto, Yuki Ohtsuka and Natoto Aizawa Eur. Phys. J. Plus, 140 6 (2025) 579 Published online: 24 June 2025 DOI: 10.1140/epjp/s13360-025-06357-2