A 14 cm×36 cm volume negative ion source producing multi‐ampere H− ion beams
A 14 cm×36 cm volume negative ion source producing multi‐ampere H− ion beams
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产生多安培 H− 离子束的 14 cm×36 cm 体积负离子源
DOI：
10.1063/1.1141233
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发表时间：
1990
影响因子：
1.6
通讯作者：
M. Seki
中科院分区：
文献类型：
--
作者：
M. Hanada;T. Inoue;H. Kojima;Y. Matsuda;Y. Ohara;Y. Okumura;Kazuhiro Watanabe;M. Seki
设计并测试了一种新型磁过滤器--PG磁过滤器--的大容量负离子源。PG过滤器通过使高电流流过等离子体网格本身，在14×36 cm 2的大提取面积上产生均匀的磁过滤场。通过优化过滤器强度，我们成功地从253个直径为11.3 mm的孔中产生了3.4 A 75 keV的负氢离子束，持续50 ms，平均电流H−密度为13 mA/cm 2。
A large volume negative ion source, which has a newly devised magnetic filter called a PG filter, was designed and tested. The PG filter produces a uniform magnetic filter field over a large extraction area of 14×36 cm2 by flowing a high current through the plasma grid itself. By optimizing the filter strength, we succeeded to produce 3.4‐A 75‐keV negative hydrogen ion beams for 50 ms from 253 apertures of 11.3 mm diam with an average current H− density of 13 mA/cm2.