摘要
介绍了RFQ冷却聚束器的基本原理及施加轴向电场的必要性。采用国际上比较先进的真实相互作用势模型进行蒙特卡洛模拟,得出施加在RFQ冷却聚束器的轴向电场的强度范围。当轴向电场强度适当时,轴向电场能很好的引导束流,使高品质的束流到达引出系统;轴向电场强度太小,不能顺利引出束流;轴向电场强度太大,会使束流包络发散,导致被引出后的束流品质降低。提示在引出束流的时候,必须选取合适的轴向电场,而不是越大越好。
Introduced the basic principle of the RFQ cooler and buncher, and the necessity of the applied axial electric field. Use the international comparative advanced Realistic Interaction Potential model for Monte Carlo sim- ulation with buffer gas is filled in RFQ, concluded the axial electric field intensity range for RFQ cooler and bunc- her. The conclusion is： when the axial electric field intensity is relatively small, the axial electric field can guide beam good, make high quality beam to reach the extraction system; when the axial electric field intensity is rela- tively large, although the same can guide the beam, but the beam envelope will divergence, leading the beam qual- ity to get worse. It is suggested that when extract the beam, must select the appropriate axial electric field, and the bigger is not better.
出处
《科学技术与工程》
北大核心
2013年第36期10774-10779,共6页
Science Technology and Engineering
基金
国家自然科学基金资助项目(11075188
11247215)
湖南省自然科学基金资助项目(13JJ4073
13JJ4074)
南华大学博士科研启动基金(2012XQD06)
核技术及应用湖南省重点学科基金项目资助
