公开(公告)号：EP4319493A1

公开(公告)日：2024-02-07

申请号：EP22936716.4

申请日：2022-09-15

申请人： China Institute of Atomic Energy

发明人： ZHANG, Tianjue ,  FU, Wei ,  WANG, Fei ,  CHU, Zhichao ,  YIN, Zhiguo ,  WANG, Chuan ,  ZHANG, Suping ,  ZHAO, Bohan ,  WEI, Sumin ,  LIU, Jingyuan ,  JIN, Zhaojun

IPC分类号： H05H13/00 ,  H05H7/00 ,  H05H7/04 ,  H05H7/06

摘要： The present application provides a cyclotron and a high-gain, high-precision method for accelerating α particles and H 2 + particles. The cyclotron comprises a dual ECR ion source system, a dual-beam injection and transmission system based on magnetic analyzer, a main magnet system, a high-frequency system based on 8th harmonics, and a dual-beam extraction system for precise control of α beam energy using deflector. The high-gain method includes doubling the frequency of the RF cavity, reducing the cavity height and the angle of the dees by half compared to the 4th harmonic high-frequency cavity, and adapting the internal rod diameter, cavity outer radius, angle width, and dees thickness accordingly. The high-precision method includes setting the beam extraction point position, observing the radial distribution of the beam on the target, and adjusting the deflector position in real-time during beam commissioning. In the present application, a cyclotron capable of accelerating alpha and H 2 + particles is developed for the first time in the world; a double-beam high-brightness merging injection of the particles and the H 2 + particles is realized for the first time, and a compact cyclotron uses an eighth-harmonic high-frequency cavity for acceleration for the first time.