H- Enhancement Process in a Multicusp Ion Source Operated with a Barium Insert Structure
Journal Article
·
· Physical Review Letters
OSTI ID:993483
It has been demonstrated that the H{sup -} output current from a small multicusp source can be substantially enhanced if the hydrogen plasma is seeded with barium. Operating with a barium washer insert at the extraction aperture, it is found that the extractable H{sup -} current is increased by a factor of three if the insert bias potential is optimized. By use of a mixture of xenon and hydrogen gas, it is further demonstrated that the positive hydrogen ions are responsible for the observed H{sup -} enhancement.
- Research Organization:
- Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA (US)
- Sponsoring Organization:
- Accelerator& Fusion Research Division
- DOE Contract Number:
- AC02-05CH11231
- OSTI ID:
- 993483
- Report Number(s):
- LBL-29226
- Journal Information:
- Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 14 Vol. 58; ISSN APPLAB; ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- English
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