Patent ID: 9107281
Filing Date: 2015-08-11
Classification: H05H

Abstract:
1. A drift tube linear accelerator comprising drift tube electrodes arranged in an acceleration cavity, for accelerating charged particles along a beam-acceleration center axis by an electric field generated between one of the drift tube electrode and another of the drift tube electrodes adjacent thereto, wherein: the acceleration cavity is configured with a center plate and a pair of half cylindrical tubes; the center plate comprises a ridge, stems and the drift tube electrodes, each stem connecting the ridge and the drift tube electrode, which are made from a common block; and the acceleration cavity is configured, as seen in cross section perpendicular to the beam-acceleration center axis, whose inner diameter in X-direction that is perpendicular to a central axis in planar direction in which the stem of the center plate extends and that is passing through the beam-acceleration center axis, is longer than whose inner diameter in Y-direction parallel to said central axis in planar direction.