Development of Pencil Beam Scanning Nozzle System

T. Asaba, T. Tachikawa, T. Ochi, M. Yamada, T. Nishio & T. Ogino
Purpose: Several types of pencil beam scanning system for proton therapy have been developed and applied to clinical treatment. In case of pencil beam scanning using cyclotron as the proton source, it is common to use continuous scanning method. Then scanning speed and beam current are modulated simultaneously[for full text, please go to the a.m. URL]