中文摘要：

高当前的氢分子的离子横梁与一架特殊设计的不锈钢班机被获得在北京大学(PKU ) 的永久磁铁 2.45-GHz 电子回旋加速器回声(ECR ) 离子来源(PMECR II ) 。为了进一步理解氢产生的物理，在内处理一个血浆房间，处于不同跑的条件的血浆房间的班机材料上的理论、试验性的调查被执行。几种材料，不锈钢(SS ) ，钽(Ta ) ，石英，和铝(艾尔) 在我们的学习被选择。试验性的结果证明不锈钢和钽是比在产生的其它好一些的。在实验期间，在部分的一个增加的趋势在离子来源内在 O ₂ 分泌物以后与不锈钢班机被观察。在 O ₂ 分泌物可能为这现象负责以后，表面分析证明粗糙在表面上变化。在这些研究以后，离子的纯水流能与很少的 52.9% 联系 42.3 妈。更多的细节在这份报纸被介绍。

英文摘要：

High current hydrogen molecular ion beam is obtained with a specially designed stainless steel liner permanent magnet2.45-GHz electron–cyclotron resonance（ECR） ion source（PMECR II） at Peking University（PKU）. To further understand the physics of the hydrogen generation process inside a plasma chamber, theoretical and experimental investigations on the liner material of the plasma chamber in different running conditions are carried out. Several kinds of materials, stainless steel（SS）, tantalum（Ta）, quartz, and aluminum（Al） are selected in our study. Experimental results show that stainless steel and tantalum are much better than others in H~＋_2 generation. During the experiment, an increasing trend in H~＋_2 fraction is observed with stainless steel liner after O_2 discharge inside the ion source. Surface analyses show that the roughness change on the surface after O_2 discharge may be responsible for this phenomenon. After these studies, the pure current of H~＋_2 ions can reach 42.3 mA with a fraction of 52.9%. More details are presented in this paper.