Photoemission starting of induction rf‐driven multicusp ion sources

Autor: L. T. Perkins, D. M. Ponce, Ka-Ngo Leung, A. T. Young, D. S. Pickard
Rok vydání: 1996
Předmět:
Zdroj: Review of Scientific Instruments. 67:428-430
ISSN: 1089-7623
0034-6748
DOI: 10.1063/1.1146608
Popis: It has been demonstrated that pulsed and continuous wave, rf‐driven hydrogen discharges can be started with photoemission. The extracted H− current from a photoemission‐started plasma has been investigated and does not differ significantly from that of a filament‐started plasma. The minimum pressure for photoemissive starting was found to be higher than that of filament starting, 17 mTorr compared to 7 mTorr, respectively, in this particular configuration.
Databáze: OpenAIRE