| 摘要 |
A system for focusing and accelerating a beam of electrically charged particles, for example protons. The system comprises a beam generator 112, a charge pulse generator 116 and a focusing and accelerating device comprising a body 120 with a core 142. The body 120 defines a charge path 112 extending along the body 120 and beam generator 112 directs a beam of electrically charged particles 114 through the core 142. The charge pulse generator 116 simultaneously delivers charge pulses to the charge path 112. The charge path 112 may be helical in shape. Movement of the charge pulse along the path creates an electric field that simultaneously accelerates and focuses the beam 114. |
