负氢PIG型离子源的束流引出测量研究

来源 :第十五届全国等离子体科学技术会议 | 被引量 : 0次 | 上传用户:lzt870702
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  用于产生负氢离子的PIG型离子源作为回旋加速器的内源得到了广泛的应用.离子源引出束流的性能参数将直接影响加速器的许多性能指标,在进行负氢束流初步引出测量实验中,束流强度的实验测量结果远远高于空间限制流的理论计算值.因此,种电屏蔽盒的直流束流引出测量方法被提出.本文阐述了电屏蔽盒直流束流引出测量的基本方法,束流轨迹的CST数值模拟以及束流引出测量实验结果.通过空间电荷限制流的“V”;定律”进行拟合,推算得到引出电压为40kv时,负氢束流强度约达到4mA.
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