Multiampere negative ion source development at Novosibirsk (invited)
Journal Article
·
· Review of Scientific Instruments
- Budker Institute of Nuclear Physics, 630090, Novosibirsk (Russia)
Results on multiampere negative ion (NI) sources with a surface-plasma mechanism of negative ion production are presented. Several types of surface-plasma sources (SPS){emdash}Honeycomb semiplanotrons and hollow-cathode Penning source{emdash}are reviewed. The data on SPS H{sup {minus}}(D{sup {minus}}) production with average NI current density in the beam up to 0.1 A/cm{sup 2} is presented. The properties of high-current glow hydrogen{endash}cesium discharge that produces a large-area, thin layer of plasma and provides the necessary components for intense negative ion emission and collecting (low work function coverage, electric and magnetic field distribution across the plasma, current composition to NI emitter) are analyzed. Data on efficiency and contribution of different channels of surface-plasma NI production are presented. {copyright} {ital 1996 American Institute of Physics.}
- OSTI ID:
- 434562
- Report Number(s):
- CONF-9509125--
- Journal Information:
- Review of Scientific Instruments, Journal Name: Review of Scientific Instruments Journal Issue: 3 Vol. 67; ISSN 0034-6748; ISSN RSINAK
- Country of Publication:
- United States
- Language:
- English
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