Abstract: High power and/or large ion beams have a big potential to be applied to various areas such as fusion energy generation, material sciences, surface physics, semiconductor processes, intensive heat flux engineering, and others [6]. A large ion beam facility, which has been designed and constructed at the Korea Atomic Energy Research Institute to test the Neutral Beam Injection System for KSTAR tokamak [3], could be applied to other areas with little added efforts at any time. The beam facility consists of an ion source, beam line components, power supplies, cooling circuits, control & DAS system, and beam diagnostics system. The ion source was designed to extract 120 kV and a 65 A deuterium beam with a rectangular beam size of 13 × 45 cm at the exit grids. Beam divergence is limited to less than 1°. Beam line components include a vacuum chamber, a neutralizer, a bending magnet, ion dumps, a calorimeter, and cryosorption pumps. They limit the beam size to less than 20 × 55 cm at a distance of 5.2 m from the ion source. Depending on the experimental conditions a neutral beam could be made by filling hydrogen gas into the neutralizer and activating the bending magnet. A cryopump is also necessary to minimize the re-ionized ions during a beam transport, and to maintain the pressure of an ion source as Development of a large beam facility Byung-Hoon Oh, Sang-Ryul In, Kwang-Won Lee, Seong-Ho Jeong, Chang-Suk Seo, Doo-Hee Chang
Publication Year: 2006
Publication Date: 2006-01-01
Language: en
Type: article
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Cited By Count: 3
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