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Recent development on RF-driven multicusp H{sup {minus}} ion sources

Conference ·
OSTI ID:281686
The radio-frequency (rf) driven multicusp source was originally developed for use in the Superconducting Super Collider injector. The source routinely provided 35 keV, 30 mA of beam at 0.1% duty factor. By using a new cesium dispensing system, beam current in excess of 100 mA and e/H{sup -} {approx}1 have been observed. For pulse mode operation, the rf discharge can be started by means of a xenon flash lamp. Extracted electrons in the beam can be efficiently removed by employing a permanent magnet insert structure. Chopping of the H{sup - } beam can be accomplished by applying a pulsed positive voltage on the plasma electrode.
Research Organization:
Lawrence Berkeley National Lab., CA (United States)
Sponsoring Organization:
USDOE, Washington, DC (United States)
DOE Contract Number:
AC03-76SF00098
OSTI ID:
281686
Report Number(s):
LBL--38268; CONF-960621--22; ON: DE96013801
Country of Publication:
United States
Language:
English

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