Some historical pictures of the U400M isochronous cyclotron Works on U300 cyclotron dismounting (pic.1-3) and U400M cyclotron mounting and assembling Years 1989-1991 Photos by Yuri A.Tumanov U300 dismounting U300 dismounting U300 dismounting Working team Pole testing before mounting Changing of U400M pole field View of the poles with the chamber Working team