High efficiency resonator for linear accelerator

US6326746A · kind A · utility

Assignee

• Advanced Ion Beam Technology, Inc. · TW

Inventor

• Jiong Chen · Shanghai, CN

Key dates

• Filing date: Jun 23, 2000
• Grant date: Dec 4, 2001
• Expiry date: Jun 23, 2020

Classification

• Technology area (CPC H): Electricity
• CPC primary: H05H9/00
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A new radio frequency (rf) linear accelerator (linac) is disclosed in this invention. The rf linac includes a plurality of resonators each includes an inductor circuit L(k), k=1,2,3, . . . , n' where n' is a second integer, wherein the inductor circuit connected to at least two electrodes E(j'), j'=1,2,3, . . . (n-1), for applying an accelerating rf voltage thereto. The rf linac further includes a plurality sets of transverse focusing lenses, represented by Lenses(j), where j=1,2,3, . . . n, and n is an integer, for guiding and focusing an ion beam. Each of the electrodes E(j') disposed between and aligned with two sets of the transverse focusing lenses Lenses(J') and Lenses(J'+1), j'=1,2,3, . . . (n-1), as a linear array. In a preferred embodiment, at least two of the adjacent electrodes E(j') and E(j'+1) are connected to a same inductor circuit L(k). In another preferred embodiment, at least two of the adjacent electrodes E(j') and E(j'+1) are connected to two different inductor circuits L(k1) and L(k2) where k1 and k2 are two different integers and k1 and k2 are smaller than n'. The energy gain from a resonator of this invention is twice or multiple of the energy gain from a sin…