Deuterium transport in a liquid metal GaInSn with natural convection under steady state plasma bombardment

Bi, Hailin; Hirooka, Y.

doi:10.1016/j.fusengdes.2017.06.020

Cited by 6 publications

(3 citation statements)

References 10 publications

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“…The remaining hydrogen atoms dissolve and diffuse in the metal medium, and are compounded into hydrogen on the low surface to permeate into the low chamber. In the process of PDP, [16] part of the hydrogen atoms and ions striking the surface are directly scattered back to the plasma. The number of particles returning rapidly to the plasma depends on the incident energy of the incoming particle and the type of material.…”

Section: Permeation and Diffusion Modelmentioning

confidence: 99%

“…The PDP of hydrogen isotopes in liquid metals such as Ga, Li, and GaInSn was discussed by Bi et al, [13] and Bi and Hirooka. [14][15][16] A mesh sheet was firstly proposed to hold a liquid metal in their work. It was confirmed that PDP is the surface recombinationlimited regime for liquid Li, and is diffusion-limited for liquid Ga and GaInSn.…”

Section: Introductionmentioning

confidence: 99%

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Gas- and plasma-driven hydrogen permeation behavior of stagnant eutectic-solid GaInSn/Fe double-layer structure

et al. 2023

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Gas- and plasma-driven hydrogen permeation through GaInSn/Fe have been systematically investigated in this work. The permeation parameters of hydrogen through GaInSn/Fe, including diffusivity, Sieverts’ constant, permeability and surface recombination coefficient were obtained. The permeation flux of hydrogen through GaInSn/Fe shows a great dependence on external conditions such as temperature, hydrogen pressure, and thickness of liquid GaInSn. What’s more, the hydrogen permeation behavior through GaInSn/Fe is in good agreement with the multilayer permeation theory. In PDP and GDP experiments, hydrogen through GaInSn/Fe satisfies the diffusion-limited regime. In addition, the permeation flux of PDP is greater than that of GDP. The increase of hydrogen plasma density hardly causes the change of hydrogen PDP flux within the test scope of this work, which is due to the dissolution saturation. These findings provide guidance for a comprehensive and systematic understanding of hydrogen isotope recycling, permeation, and retention in plasma-facing components under actual conditions.

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Section: Permeation and Diffusion Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Gas- and plasma-driven hydrogen permeation behavior of stagnant eutectic-solid GaInSn/Fe double-layer structure

et al. 2023

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“…Fundamental studies have been carried out such as thermofluid of the free surface flow in a magnetic field 80 and deuterium transport under plasma exposure 81 . Helical Reactor Design in NIFS adopted a liquid divertor option 82 .…”

Section: Iiie Liquid Divertorsmentioning

confidence: 99%

Overview of Fusion Engineering Research in Japan Focusing on Activities in NIFS and Universities

Muroga

Fukada

Hayashi

2019

Fusion Science and Technology

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This paper provides an overview of Japanese fusion engineering research activities focusing on those being carried out by NIFS and Japanese universities (Universities). NIFS is promoting the Fusion Engineering Research Project as one of the three research projects. The majority of the activity in the project is being carried out by collaboration with Universities. Utilizing core facilities installed in NIFS and the unique infrastructures of Universities, collaboration between NIFS and Universities is performed in superconducting magnet, liquid breeder blanket, advanced materials, high heat flux components, and tritium safety. NIFS also carries out international collaboration programs, such as Japan-China, Japan-USA, and IEA-based collaborations, promoting participation of University researchers. Responsibility division with QST, and contributions to ITER-BA and "Action Plan toward DEMO Development" are also reported.

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Deuterium permeation through liquid tin supported by a nickel substrate

Otsuka

Hatano

Inoue

et al. 2023

Fusion Engineering and Design

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Deuterium transport in a liquid metal GaInSn with natural convection under steady state plasma bombardment

Cited by 6 publications

References 10 publications

Gas- and plasma-driven hydrogen permeation behavior of stagnant eutectic-solid GaInSn/Fe double-layer structure

Gas- and plasma-driven hydrogen permeation behavior of stagnant eutectic-solid GaInSn/Fe double-layer structure

Overview of Fusion Engineering Research in Japan Focusing on Activities in NIFS and Universities

Deuterium permeation through liquid tin supported by a nickel substrate

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