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First measurements of p11B fusion in a magnetically confined plasma

http://hdl.handle.net/10655/00013553
http://hdl.handle.net/10655/00013553
a0040da3-ddbf-4025-bec6-dc7dae35f4a1
名前 / ファイル ライセンス アクション
13384_Nature.Comm.pdf 13384_Nature.Comm (1.4 MB)
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13384_Data.xlsx 13384_Data (111.9 MB)
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Item type 学術雑誌論文 / Journal Article(1)
公開日 2023-02-24
タイトル
タイトル First measurements of p11B fusion in a magnetically confined plasma
言語
言語 eng
資源タイプ
資源タイプ識別子 http://purl.org/coar/resource_type/c_6501
資源タイプ journal article
著者 MAGEE, Richard

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MAGEE, Richard

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OGAWA, Kunihiro

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OGAWA, Kunihiro

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TAJIMA, T.

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TAJIMA, T.

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ALLFREY, Ian

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ALLFREY, Ian

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GOTA, Hiroshi

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GOTA, Hiroshi

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McCARROLL, P.

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McCARROLL, P.

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OHDACHI, Satoshi

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OHDACHI, Satoshi

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ISOBE, Mitsutaka

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ISOBE, Mitsutaka

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KAMIO, Shuji

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KAMIO, Shuji

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KLUMPER, V.

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KLUMPER, V.

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NUGA, Hideo

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NUGA, Hideo

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SHOJI, Mamoru

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SHOJI, Mamoru

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ZIAEI, S.

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ZIAEI, S.

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BINDERBAUER, M. W.

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BINDERBAUER, M. W.

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OSAKABE, Masaki

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OSAKABE, Masaki

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著者ID
内容記述タイプ Other
内容記述 0000-0001-6697-7891
抄録
内容記述タイプ Abstract
内容記述 Proton-boron (p11B) fusion is an attractive potential energy source but technically challenging to implement. Developing techniques to realize its potential requires first developing the experimental capability to produce p11B fusion in the magnetically-confined, thermonuclear plasma environment. Here we report clear experimental measurements supported by simulation of p11B fusion with high-energy neutral beams and boron powder injection in a high-temperature fusion plasma (the Large Helical Device) that have resulted in diagnostically significant levels of alpha particle emission. The injection of boron powder into the plasma edge results in boron accumulation in the core. Three 2 MW, 160 kV hydrogen neutral beam injectors create a large population of well-confined, high -energy protons to react with the boron plasma. The fusion products, MeV alpha particles, are measured with a custom designed particle detector which gives a fusion rate in very good relative agreement with calculations of the global rate. This is the first such realization of p11B fusion in a magnetically confined plasma.
書誌情報 nature communications

巻 14, p. Article number: 955, 発行日 2023-02-21
出版者
出版者 Nature Research
ISSN
収録物識別子タイプ ISSN
収録物識別子 2041-1723
DOI
関連タイプ isIdenticalTo
識別子タイプ DOI
関連識別子 https://doi.org/10.1038/s41467-023-36655-1
権利
権利情報 © The Author(s) 2023
権利
権利情報 The version of record of this article, first published in nature communications, is available online at Publisher’s website: http://dx.doi.org/10.1038/s41467-023-36655-1
情報源
関連名称 Magee, R.M., Ogawa, K., Tajima, T. et al. First measurements of p11B fusion in a magnetically confined plasma. Nat Commun 14, 955 (2023). https://doi.org/10.1038/s41467-023-36655-1
関連サイト
識別子タイプ DOI
関連識別子 https://doi.org/10.1038/s41467-023-36655-1
関連名称 Publisher version
著者版フラグ
出版タイプ VoR
出版タイプResource http://purl.org/coar/version/c_970fb48d4fbd8a85
NAIS
13384
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