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First Prototype of a Cesium Oven Design for Negative-Ion-Source-Based Neutral Beam Injector at ASIPP

Author

Listed:
  • Wei Liu

    (Institute of Plasma Physics Chinese Academy of Sciences, Hefei 230031, China)

  • Bo Liu

    (Institute of Plasma Physics Chinese Academy of Sciences, Hefei 230031, China
    Science Island Branch, University of Science and Technology of China, Hefei 230026, China)

  • Yuanzhe Zhao

    (Institute of Plasma Physics Chinese Academy of Sciences, Hefei 230031, China)

  • Qinglong Cui

    (Institute of Plasma Physics Chinese Academy of Sciences, Hefei 230031, China)

  • Chundong Hu

    (Institute of Plasma Physics Chinese Academy of Sciences, Hefei 230031, China
    Science Island Branch, University of Science and Technology of China, Hefei 230026, China)

  • Lizhen Liang

    (Institute of Plasma Physics Chinese Academy of Sciences, Hefei 230031, China
    Science Island Branch, University of Science and Technology of China, Hefei 230026, China)

Abstract

The RF-driven negative ion source has a steady state characteristic and will be a promising ion source for neutral beam injection (NBI) in the future. Cesium (Cs) injection is an efficient method to enhance the yield of negative ions during plasma discharge. In order to support the engineering and physical research in this field, the Cs oven prototype has been developed for negative ion source based neutral beam injector at ASIPP. This article presents the design details of a Cs oven system, including the constant temperature control system, the mechanical structure of Cs oven, and the surface ionization detector (SID). SID is a measurement method for the cesium flux in the nozzle. The experiment results of constant temperature control system show that the control accuracy and function meet the requirements of device operation. Meanwhile, the simulation analysis of Cs vapor concentration has been carried out in this paper. According to the simulation results, the graph of total Cs flux is given in the article, which presents the reference for the subsequent device testing.

Suggested Citation

  • Wei Liu & Bo Liu & Yuanzhe Zhao & Qinglong Cui & Chundong Hu & Lizhen Liang, 2022. "First Prototype of a Cesium Oven Design for Negative-Ion-Source-Based Neutral Beam Injector at ASIPP," Energies, MDPI, vol. 15(12), pages 1-11, June.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:12:p:4409-:d:840903
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    References listed on IDEAS

    as
    1. Ling Tao & Yuanlai Xie & Chundong Hu & Wei Yi & Lizhen Liang, 2022. "Improved Design and Thermo-Mechanical Verification of Deflection Magnet Beam Collimator of EAST-NBI System," Energies, MDPI, vol. 15(5), pages 1-12, March.
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