A direct-current Penning surface-plasma source

Journal Article · Thu Mar 31 23:00:00 EST 1994 · Review of Scientific Instruments; (United States)

DOI:https://doi.org/10.1063/1.1145049· OSTI ID:5125337

Smith, Jr, H V; Allison, P; Geisik, C; Schmitt, D R; Schneider, J D; Stelzer, J E ^[1]

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1. Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)

After developing a pulsed 8X source for H[sup [minus]] beams, we are now testing a cooled, dc version. The design dc power density on the cathode surface is 900 W/cm[sup 2], much higher than achieved in any previously reported Penning surface-plasma source. The source is designed to accommodate dc arc power levels up to 30 kW by cooling the electrode surfaces with pressurized, hot water. After striking the arc using a 600-V pulser, a 350-V dc power supply is switched in to sustain the 100-V discharge. Now our tests are concentrating on arc pulse lengths [le]1 s. Ultimately, the discharge will be operated dc. The source is described and the initial arc test results are presented.

• OSTI ID: 5125337
• Journal Information: Review of Scientific Instruments; (United States), Journal Name: Review of Scientific Instruments; (United States) Vol. 65:4; ISSN 0034-6748; ISSN RSINAK
• Country of Publication: United States
• Language: English

Related Subjects

661220* -- Particle Beam Production & Handling
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ANIONS
CATHODES
CHARGED PARTICLES
COOLING
CURRENTS
DESIGN
ELECTRIC ARCS
ELECTRIC CURRENTS
ELECTRIC DISCHARGES
ELECTRODES
HYDROGEN IONS
HYDROGEN IONS 1 MINUS
ION SOURCES
IONS
PENNING ION SOURCES
Ta
Targets-- (1992-)