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Neutral gas and plasma shielding (NGPS) model and cross-field motion of ablated material for hydrogen-neon mixed pellet injection
https://repo.qst.go.jp/records/85977
https://repo.qst.go.jp/records/8597703d8d76e-ee4c-42eb-9a0d-b391de120f18
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2022-04-11 | |||||
| タイトル | ||||||
| タイトル | Neutral gas and plasma shielding (NGPS) model and cross-field motion of ablated material for hydrogen-neon mixed pellet injection | |||||
| 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 |
松山, 顕之
× 松山, 顕之× Akinobu, Matsuyama |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | A neutral-gas and plasma shielding (NGPS) model is applied for cryogenic hydrogen–neon mixed pellet injection used for the mitigation of tokamak disruptions. The NGPS model is useful to evaluate the characteristics of ionized plasmoid (size, density, temperature, and radiation), while reproducing the scaling of the neutral gas shielding model. It is found that even if one takes into account the optical thickness for radiation, the energy loss due to line radiation associated with neon is strong enough to limit the temperature and the pressure of the ionized plasmoid for pure neon or hydrogen–neon mixed pellets in the early phase of the material homogenization. Consequently, the ionized plasmoid of the neon mixed pellets is expected to homogenize along the magnetic field line where the ablated material is released—without significantly making the cross-field drift motion—as compared to pure hydrogen pellets. |
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| 書誌情報 |
Physics of Plasmas 巻 29, p. 042501-1-042501-10, 発行日 2022-04 |
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| 出版者 | ||||||
| 出版者 | AIP Publishing | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 1070-664X | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1063/5.0084586 | |||||
| 関連サイト | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | https://doi.org/10.1063/5.0084586 | |||||
