Beam deflector for charged particles

Abstract

Abstract PURPOSE: To deflect the charged particles, without any change in the essential shape of a beam, to erradiate an obstacle by arranging an electromagnet such the projection trajectory of a first deflecting electromagnet is arranged in parallel with the incident trajectory of a second deflecting electromagnet. CONSTITUTION: The segment M1a and M2a of two deflecting electromagnets M1 and M2 are used as the projection outlets of the projecting trajectories L11 and L13 which are respectively arranged to correspond to the incident inlets of incident trajectories L10 and L12, respectively. More specifically, two electromagnets are arranged such that the projecting trajectory l11 becomes coincident with the incident trajectory l12. If, now, the charged particle beam having a preset range of momentum becomes incident upon the magnet M11 along the trajectory L10, the particles are all projected from the trajectory l11 so that they are projected by the magnet M2 along the parallel trajectory L13. Thus, without any change in the essential shape of the beam, the charged particles can be deflected to irradiate the object. COPYRIGHT: (C)1979,JPO&Japio

Inventors

• 👤 Yasuo Takahashi

Bibliographic Details