Continuous operated H/sup -/-surface plasma ion source

Journal Article · Thu May 01 04:00:00 EDT 1986 · Rev. Sci. Instrum.; (United States)

DOI:https://doi.org/10.1063/1.1138821· OSTI ID:5887094

Piosczyk, B; Dammertz, G

A H/sup -/-surface plasma source with a cesiated converter electrode has been operated continuously. Out of a single extraction aperture of a diameter of 13 mm, a H/sup -/ current of 50 mA has been extracted with reasonable beam properties. The current was limited by the extraction voltage of 30 kV. The dependence of the generated H/sup -/ current on different parameters has been examined. In addition, the profile and the emittance of the extracted ion beam has been measured. At optimum conditions, the beam divergence was found to be +- 22 mrad. The normalized rms emittance was measured to be 0.4 x 10/sup -6/ ..pi.. mrad. The emittance of the beam is mainly determined by the geometrical arrangement of the converter electrode with respect to the extraction aperture.

• Research Organization: Kernforschungszentrum Karlsruhe, Institut fuer Kernphysik II, Postfach 3640, 7500 Karlsruhe, Federal Republic of Germany
• OSTI ID: 5887094
• Journal Information: Rev. Sci. Instrum.; (United States), Journal Name: Rev. Sci. Instrum.; (United States) Vol. 57:5; ISSN RSINA
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
430301* -- Particle Accelerators-- Ion Sources
ALKALI METALS
BEAMS
CESIUM
CHARGED PARTICLES
CURRENT DENSITY
ELEMENTS
HYDROGEN IONS
ION BEAMS
ION SOURCES
IONS
METALS
OPERATION
PERFORMANCE
PLASMA