CAJ | 학술논문

　　理论分析了负氢离子体积产生机制，采用自主开发的三维PIC?MCC模拟软件，对多峰磁场约束的负氢离子源进行数值模拟研究。模拟了引出磁场、放电初始能量、及放电位置对振动激发碰撞效率的影响，探索了多峰负氢离子源的优化手段。研究表明：如果进入引出区的快电子越多且-y方向漂移越剧烈，那么振动碰撞越频繁且相对碰撞率越高，即负氢离子体积产生效率越高。
　　이론분석료부경리자체적산생궤제，채용자주개발적삼유PIC?MCC모의연건，대다봉자장약속적부경리자원진행수치모의연구。모의료인출자장、방전초시능량、급방전위치대진동격발팽당효솔적영향，탐색료다봉부경리자원적우화수단。연구표명：여과진입인출구적쾌전자월다차-y방향표이월극렬，나요진동팽당월빈번차상대팽당솔월고，즉부경리자체적산생효솔월고。
The mechanism of the negative hydrogen ion volume production is analysed theoretically. The negative hydrogen ion source restrained by multi?peak megnetic field was numerically simulated with self?developed 3D simulation software PIC?MCC,in which the influence of leading?out megnetic field,primary energy and position of discharge on the collision efficiency excited by vibration are simulated. The optimization means for the multi?peak negative hydrogen ion source are explored. The re?sults show that the more the fast electrons move into the extraction region and the more severe the negative y?direction drift is, the more frequent the vibrational excitation collision happens and the higher the relative collision rate becomes,in other word, the higher the volume production efficiency of negative hydrogen ions appears.