【摘要】 对考虑了共振电荷转移碰撞过程的二维ＡＶＬＩＳ离子引出收集问题进行了数值模拟，分析结果表明：碰撞主要发生在鞘层中；影响碰撞损失率的主要因素是极板间距，应选择小于３ｃｍ的收集板间距；离子引出时间不是判断碰撞损失率的标准。更多还原

【Abstract】 The 2 D ion collection process with charge exchange in AVLIS was simulated. The results show that collisions mostly occur in ion sheath and the lost ratio of collision is mainly related with the distance between the collectors, which should be less than 3 cm. The extraction time can not serve as the criterion for the lost ratio of collision.更多还原