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Isotope effects on energy, particle transport and turbulence in electron cyclotron resonant heating plasma of the Large Helical Device
https://repo.qst.go.jp/records/78386
https://repo.qst.go.jp/records/783861a4f1613-0455-46aa-af55-774baf27ef40
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2020-01-09 | |||||
| タイトル | ||||||
| タイトル | Isotope effects on energy, particle transport and turbulence in electron cyclotron resonant heating plasma of the Large Helical Device | |||||
| 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 | |||||
| アクセス権 | ||||||
| アクセス権 | metadata only access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
| 著者 |
Tanaka, K.
× Tanaka, K.× Ohtani, Y.× Nakata, M.× Warmer, F.× Tsujimura, T.× Takemura, Y.× Kinoshita, T.× Takahashi, H.× Yokoyama, M.× Seki, R.× Yoshiaki, Ohtani |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Positive isotope effects have been found in electron cyclotron resonant heating plasma of the Large Helical Device (LHD). The global energy confinement time (τ E) in deuterium (D) plasma is 16% better than in hydrogen (H) plasma for the same line-averaged density and absorption power. The power balance analyses showed a clear reduction in ion energy transport, while electron energy transport does not change dramatically. The global particle confinement time (τ p) is degraded in D plasma; τ p in D plasma is 20% worse than in H plasma for the same line-averaged density and absorption power. The difference in the density profile was not due to the neutral or impurity sources, but rather was due to the difference in the transport. Ion scale turbulence levels show isotope effects. The core turbulence (ρ = 0.5–0.8) level is higher in D plasma than in H plasma in the low collisionality regime and is lower in D plasma than in H plasma. The density gradient and collisionality play a role in the core turbulence level. | |||||
| 書誌情報 |
Nuclear Fusion 巻 59, 号 12, p. 126040, 発行日 2019-10 |
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| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 0029-5515 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1088/1741-4326/ab4237 | |||||
| 関連サイト | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | https://iopscience.iop.org/article/10.1088/1741-4326/ab4237/meta | |||||
