Development of a Compact Divertor Plasma Simulator for Plasma-Wall Interaction Studies on Neutron-Irradiated Materials
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- OHNO Noriyasu
- Graduate School of Engineering, Nagoya University
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- KUWABARA Tatsuya
- Graduate School of Engineering, Nagoya University
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- TAKAGI Makoto
- Graduate School of Engineering, Nagoya University
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- NISHIMURA Ryo
- Graduate School of Engineering, Nagoya University
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- YAJIMA Miyuki
- National Institute for Fusion Science
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- SAGARA Akio
- National Institute for Fusion Science
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- TOYAMA Takeshi
- Institute for Materials Research, Tohoku University
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- SUZUKI Katuya
- Institute for Materials Research, Tohoku University
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- KURISHITA Hiroaki
- Institute for Materials Research, Tohoku University
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- SHIKAMA Tatsuo
- Institute for Materials Research, Tohoku University
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- HATANO Yuji
- Hydrogen Isotope Research Center, University of Toyama
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- YOSHIDA Naoaki
- Research Institute for Applied Mechanics, Kyushu University
Bibliographic Information
- Other Title
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- Development of a compact vertor plasma simulator for plasma-wall interaction studies on neutron-irradiated materials
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Description
<p>We have developed a compact divertor plasma simulator (CDPS) that can produce steady-state deuterium and/or helium plasmas with densities above ∼ 1018 m−3 for Plasma-Wall Interaction (PWI) studies of neutronirradiated materials. The maximum particle flux is about 1022 m−2s−1. The CDPS was installed and is being operated in the radiation-controlled area of the International Research Center for Nuclear Materials Science, Institute for Materials Research, Tohoku University. We are able to control sample temperature within uncertainty of 5◦C during plasma exposure by adjusting the cooling air flow rate to the sample holder. The CDPS has a sample-carrier system, which makes it possible to transfer a plasma-irradiated sample from the sample holder to an infrared heater for analysis using thermal desorption spectroscopy (TDS) without exposing it to the air. This avoids the oxidation of the sample and minimizes the time between the end of plasma exposure and TDS analysis. An ITER-like tungsten (W) sample (A.L.M.T. Corp.), which has been irradiated by neutrons to 0.06 dpa in a fission reactor, was exposed to a deuterium plasma in the CDPS. The experimental results clearly show that the total deuterium retention in the neutron-irradiated W sample increases significantly in comparison with a pristine W, as demonstrated by broadening of the TDS spectrum at high temperatures.</p>
Journal
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- Plasma and Fusion Research
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Plasma and Fusion Research 12 (0), 1405040-1405040, 2017
The Japan Society of Plasma Science and Nuclear Fusion Research
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Details 詳細情報について
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- CRID
- 1390001205254102656
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- NII Article ID
- 130006224431
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- NII Book ID
- AA12346675
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- ISSN
- 18806821
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- HANDLE
- 10655/00012942
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- Text Lang
- en
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- Data Source
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- JaLC
- IRDB
- Crossref
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed