H− beam extraction experiments on the Culham small multipole source
McAdams, R. ; Holmes, A. J. T. ; Nightingale, M. P. S.
[S.l.] : American Institute of Physics (AIP)
Published 1988
[S.l.] : American Institute of Physics (AIP)
Published 1988
| ISSN: |
1089-7623
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|---|---|
| Source: |
AIP Digital Archive
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| Topics: |
Physics
Electrical Engineering, Measurement and Control Technology
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| Notes: |
Beam extraction experiments have been carried out on a multicusp volume H− ion source operated in a dc mode. With an extraction aperture of 16-mm diameter, negative ion beams of up to 15 mA cm−2 have been extracted. Some experiments have been performed to investigate the physics of beam extraction from the plasma that indicate a fixed plasma boundary. The beam emittance has been measured as a function of various arc and accelerator parameters. The negative ion temperatures inferred from the emittance measurements cannot at present be explained.
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| Type of Medium: |
Electronic Resource
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| URL: |