PURPOSE: To take out different energy particles by providing RF separators on orbits corresponding to different energies and taking out a punch every natural number of punch lines of beams.

CONSTITUTION: On orbits corresponding to different energies, RF separators 7, 8 are provided. A wave form a is punch line initially passed through an accelerating tube. Denoted at Ea is an energy, which is lined at punch intervals T according to the accelerating frequency. The energy is increased as Eb, Ec every time it is passed through the accelerating tube. When the RF separator 7 on the orbit 5 is operated as a wave form d, the orbit of the energy particles are partly bent, further deflected by a deflection magnet 9, and taken out of the device. When the RF separator 8 on the orbit 6 is operated as a wave form f, then a part of the energy particles is taken out in a wave form e. The punch line of the particles accelerated at last has a wave form as g. Thus, three kinds of different energy particles can be taken out simultaneously.