CHARACTERISTICS OF A HIGH CURRENT ION SOURCE OPERATED WITH LITHIUM
A low pressure arc ion source has been tested for operation with lithium. Currents up to 120 mA could be extracted through a multiple aperture extraction system at energies of 30 keV. The ion beam was neutralized up to 70% in a charge exchange cell filled with lithium vapour. The beam divergence ranged from 20 to 25 mrad full angle deduced from the spatial distribution of the collision induced Li I resonance line. Current densities from 2 to 3 mA/cm**2 at a distance of 1.9 m from the source were measured either by laser induced fluorescence or with a Faraday cup.
Bibliographic Reference: WRITE TO ZENTRALBIBLIOTHEK DER KERNFORSCHUNGSANLAGE JUELICH GMBH, POSTFACH 1913, D-5170 JUELICH (GERMANY), MENTIONING KFA-BERICHT JUEL-2062, 1986
Record Number: 1989125032000 / Last updated on: 1987-03-01
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