Simulation of high-intense beam transport in electrostatic accelerating column  

作　　者：卢小龙 姚泽恩 张宇 徐大鹏 陈尚文 王俊润 黄智武 马占文 王伟 

机构地区：[1]School of Nuclear Science and Technology, Lanzhou University [2]Enginnering Research Center for Neutron Application,Ministry of Education, Lanzhou University

出　　处：《Nuclear Science and Techniques》2015年第6期19-24,共6页核技术（英文）

基　　金：Supported by the National Nature Science Foundation of China(Nos.11027508 and 21327801);Ministry of Sciences and Technology of China(No.2013YQ040861);Fundamental Research Funds for the Central Universities(No.lzujbky-2015-bt07)

摘　　要：An electrostatic accelerating column was designed and fabricated by Lanzhou University for an intense DT/D-D neutron generator. In order to achieve a neutron yield of 5.0 × 10^(12)n/s, a deuteron beam of 30 mA,accelerated to 400 kV, and transported in the electrostatic accelerating column smoothly are required. One particle-in-cell code BEAMPATH was used to simulate the beam transport, and the IONB 1.0 code was used to simulate the intense beam envelopes. Emittance growths due to space charge effect and spherical aberration were analyzed. The simulation results show that the accelerating column can transport deuteron beam of 30 mA smoothly and the requirement for the neutron generator is satisfied.An electrostatic accelerating column was designed and fabricated by Lanzhou University for an intense DT/D-D neutron generator. In order to achieve a neutron yield of 5.0 × 10^（12）n/s, a deuteron beam of 30 mA,accelerated to 400 kV, and transported in the electrostatic accelerating column smoothly are required. One particle-in-cell code BEAMPATH was used to simulate the beam transport, and the IONB 1.0 code was used to simulate the intense beam envelopes. Emittance growths due to space charge effect and spherical aberration were analyzed. The simulation results show that the accelerating column can transport deuteron beam of 30 mA smoothly and the requirement for the neutron generator is satisfied.

关 键 词：静电加速管 光束传输 粒子模拟 高强度 中子发生器 空间电荷效应 发射度增长 兰州大学 

分 类 号：O571.5[理学—粒子物理与原子核物理]