强激光与粒子束2018，Vol.30Issue(7)：152-157,6.DOI:10.11884/HPLPB201830.170098
神龙二号热阴极注入器束流调试
Beam transport tuning of Dragon-Ⅱ inj ector with thermal cathode
摘要
Abstract
The Dragon-Ⅱ inj ector is a strong current pulse electron beam source,it is an inductive adder with thermal cath-ode and provides three pulse beams with adj ustable pulse interval for Dragon-Ⅱ LIA.The way with cross validation and mutual promotion of PIC simulations and experiments is adopted during the inj ector beam tuning.First,the magnetic field loading range of the leading solenoid is determined approximately by the beam spot measurements.Second,the magnetic field configuration of every solenoid installed in the anode beam line is simulated by PIC step by step,and then confirmed by the beam spot measure-ments.By this means,three kinds of magnetic field configurations which can keep the pulse flat-topped completely are obtained in order to meet the different requirements of the downstream beam transportation.Finally,the factors affecting the effects of beam tuning are discussed and the key to the inj ector performance improvement is considered to be further improving the emission uni-formity of the large area thermal cathode.关键词
注入器/热阴极/束流调试/PIC模拟Key words
injector/thermal cathode/beam tuning/PIC simulation分类
能源科技引用本文复制引用
代志勇,杨治勇,臧宗旸,张晓波,石金水,李劲,赖青贵,王敏鸿..神龙二号热阴极注入器束流调试[J].强激光与粒子束,2018,30(7):152-157,6.基金项目
国家专项基金项目 （）
