Published March 1991
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Intense negative ion source
Description
The volume H- ion source has been developed at KEK. The H- beam intensity was enhanced by introducing a very small amount of cesium vapor in the ion source. The extracted H- beam current of 20 mA was obtained in the cesium-mode operation. The measured 90 % normalized beam emittance was about 1 πmm.mrad for 12 mA beam. It was found that the work function of the cesium covered surface of the beam extracting plasma electrode had an important role to enhance the H- beam intensity. (author)
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Additional details
Publishing Information
- Imprint Title
- Proceedings of the eleventh meeting of the international collaboration on advanced neutron sources (ICANS-XI)
- Imprint Pagination
- 654 p.
- Journal Page Range
- p. 247-250.
- Report number
- KEK--90-25(v.1)
Conference
- Title
- 11. meeting of the international collaboration on advanced neutron sources (ICANS-XI).
- Dates
- 22-26 Oct 1990.
- Place
- Tsukuba, Ibaraki (Japan).
INIS
- Country of Publication
- Japan
- Country of Input or Organization
- Japan
- INIS RN
- 23015344
- Subject category
- S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
- Resource subtype / Literary indicator
- Conference, Numerical Data
- Descriptors DEI
- BEAM EMITTANCE; BEAM EXTRACTION; BEAM PROFILES; CESIUM; EXPERIMENTAL DATA; HYDROGEN 1 MINUS BEAMS; ION SOURCES; MILLI AMP BEAM CURRENTS; VAPORS; WORK FUNCTIONS
- Descriptors DEC
- ALKALI METALS; BEAM CURRENTS; BEAMS; CURRENTS; DATA; ELEMENTS; FLUIDS; GASES; INFORMATION; ION BEAMS; METALS; NUMERICAL DATA