公开(公告)号：US3769599A

公开(公告)日：1973-10-30

申请号：US3769599D

申请日：1971-04-22

Applicant: THOMSON CSF

Inventor： LEBOUTET H ,  BENSUSSAN A

IPC: H01J29/52 ,  H05H7/00 ,  H05H9/00 ,  H01J23/20

CPC classification number: H01J29/52 ,  H05H7/00 ,  H05H9/00

Abstract: The invention relates to an arrangement for accelerating, to a predetermined velocity at least one bunch from a bunched beam of particles, the length of said bunch corresponding to one cycle of the high frequency of the accelerator. In this arrangement the injection voltage V of the beam is raised to a value larger than the cut-off voltage Vc of the accelerator, exclusively during a short period. Said injection voltage V is created by the addition of a pulsed voltage Vo and high-frequency voltages V1 and V2 generated in resonant cavities 3 and 4 disposed in the trajectory of the beam and tuned respectively to a sub-multiple of said high frequency.