Operation of RF driven Negative Ion Source in a Pure-Hydrogen Mode

被引：5

作者：

Abdrashitov, G. ^{[1
]}

Belchenko, Yu. ^{[1
]}

Ivanov, A. A. ^{[1
,2
]}

Gusev, I. ^{[1
]}

Senkov, D. ^{[1
]}

Sanin, A. ^{[1
]}

Shikhovtsev, I. ^{[1
]}

Sotnikov, O. ^{[1
,2
]}

Kondakov, A. ^{[1
]}

机构：

[1] Budker Inst Nucl Phys, Novosibirsk 630090, Russia

[2] Novosibirsk State Univ, Novosibirsk 630090, Russia

来源：

FOURTH INTERNATIONAL SYMPOSIUM ON NEGATIVE IONS, BEAMS AND SOURCES (NIBS 2014) | 2015年 / 1655卷

关键词：

ACCELERATORS; FUSION;

D O I：

10.1063/1.4916451

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The production of negative hydrogen ions in the radio-frequency driven long-pulsed source with external antenna is studied. RF drivers with various geometry of external antenna, Faraday shield and magnets at the rear flange were examined. H- beam extraction through the single emission aperture was performed in the source pure-hydrogen mode with no external seed of alkali additives. H- beam with ion emission current density up to 5 mA/cm(2) and energy up to 75 keV was regularly obtained in the 1 s pulses of the pure-hydrogen mode. The regular temporal increase of H- ion production due to deposition of impurities on the plasma grid surface was recorded. The H- emission current density increased up to 9 mA/cm(2) in this case.

引用

页数：9

共 14 条

[1]

Abdrashitov G., AIP C P

[2] A Langmuir probe system for high power RF-driven negative ion sources on high potential [J].