强激光与粒子束, 2019, 31 (8): 085106, 网络出版: 2019-07-25
离子源注入型IH加速腔冷测与调谐
Cold test and cavity tuning for ion source injected IH cavity
摘要
离子源注入型IH加速器有望发展成为一种紧凑型低功耗离子加速器,为有效验证该加速结构的束流俘获效率,中国工程物理研究院流体物理研究所设计了一套将质子束从0.04 MeV加速到2.0 MeV的IH加速腔。目前已经完成了该腔的腔体加工,开展了高频参数冷测及腔体调谐研究。通过漂移管调谐和电感调谐,减小了腔体的频率误差和加速电压分布误差。模拟计算实测电场下腔体的束流俘获效率,由调谐前的16%提高到调谐后的34%。冷测调谐结果表明,该加速腔的各项参数达到设计值,具备进行功率测试和束流测试的条件。
Abstract
Aimed to prove the capture efficiency of ion source injected Interdigital H mode (IH) cavity, a short linac is under construction in Institute of Fluid Physics, CAEP. Protons could be accelerated from 0.04 MeV to 2.4 MeV with this linac. The cavity was manufactured, cold test and cavity tuning were performed. After frequency tuning and field tuning, both frequency error and voltage distribution error were successfully decreased. Simulation results shows that capture efficiency of this cavity was increased from 16% to 34% by cavity tuning. The cavity parameters have reached the tuning objective and beam test will be carried out.
赵良超, 何小中, 庞健, 马超凡, 石金水. 离子源注入型IH加速腔冷测与调谐[J]. 强激光与粒子束, 2019, 31(8): 085106. Zhao Liangchao, He Xiaozhong, Pang Jian, Ma Chaofan, Shi Jinshui. Cold test and cavity tuning for ion source injected IH cavity[J]. High Power Laser and Particle Beams, 2019, 31(8): 085106.