Related Experiment Video
Updated: Jun 15, 2026

Preparing a Celadonite Electron Source and Estimating Its Brightness
Published on: November 5, 2019
Characteristics of 80 keV positive ion source for Large Helical Device
H Nakano1, M Osakabe, K Tsumori
1National Institute for Fusion Science, National Institutes of National Sciences, 322-6 Oroshi-cho, Toki 509-5292, Japan. nakano@nifs.ac.jp
Abstract:
An additional beamline, BL5, equipped with four positive ion sources will be installed on Large Helical Device (LHD) in 2010. The performance of an ion source which generates 80 keV deuterium and 60 keV hydrogen beams was investigated. The structure of the ion source is based on that of a BL4 ion source on LHD. The main differences between the ion sources for the BL4 and BL5 are the acceleration voltages and the materials of plasma electrodes: copper and molybdenum, respectively. The molybdenum plasma electrode for BL5 has better performance than the copper plasma electrode of BL4. The integrated performance of the ion source for BL5 reached a value equivalent to approximately 58 A in the beam current of hydrogen positive ion at 60 keV in the beam energy.
Related Concept Videos
Van de Graaff Generator
Van de Graaff uses both smooth and pointed surfaces, conductors, and insulators to generate large static charges and, hence, large voltages. A substantial excess charge can be deposited on the sphere because it moves...
Nuclear Transmutation
Mass Analyzers: Common Types
