H? beam extraction from a cesium seeded field effect transistor based radio frequency negative hydrogen ion source

A. Ando, T. Matsuno, T. Funaoi, N. Tanaka, K. Tsumori, Y. Takeiri

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

H- 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 19 m-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- 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.

Original languageEnglish
Article number02B122
JournalReview of Scientific Instruments
Volume83
Issue number2
DOIs
Publication statusPublished - 2012 Feb

ASJC Scopus subject areas

  • Instrumentation

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