H{sup -} beam extraction from a cesium seeded field effect transistor based radio frequency negative hydrogen ion source

Journal Article · Wed Feb 15 00:00:00 EST 2012 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.3684720· OSTI ID:22066295

Ando, A; Matsuno, T; Funaoi, T; Tanaka, N ^[1]; Tsumori, K; Takeiri, Y ^[2]

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1. School of Engineering, Tohoku University, Sendai 980-8579 (Japan)
2. National Institute for Fusion Science, Toki 509-5292 (Japan)

H{sup -} beam was successfully extracted from a cesium seeded ion source operated using a field effect transistor inverter power supply as a radio frequency (RF) wave source. High density hydrogen plasma more than 10{sup 19} m{sup -3} was obtained using an external type antenna with RF frequency of lower than 0.5 MHz. The source was isolated by an isolation transformer and H{sup -} ion beam was extracted from a single aperture. Acceleration current and extraction current increased with the increase of extraction voltage. Addition of a small amount of cesium vapor into the source enhanced the currents.

• OSTI ID: 22066295
• Journal Information: Review of Scientific Instruments, Vol. 83, Issue 2; Conference: ICIS 2011: 14. international conference on ion sources, Giardini-Naxos, Sicily (Italy), 12-16 Sep 2011; Other Information: (c) 2012 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0034-6748
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ACCELERATION
ANTENNAS
BEAM EXTRACTION
CESIUM
ELECTRIC POTENTIAL
FIELD EFFECT TRANSISTORS
HYDROGEN IONS 1 MINUS
ION BEAMS
ION SOURCES
MHZ RANGE
PLASMA DENSITY
PLASMA HEATING
POWER SUPPLIES
RADIOWAVE RADIATION
TRANSFORMERS