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Improvement of ignition and burning target design for fast ignition scheme
https://repo.qst.go.jp/records/84922
https://repo.qst.go.jp/records/849225021ee41-6497-4cf2-8b18-4e62eb5608fe
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2021-12-28 | |||||
| タイトル | ||||||
| タイトル | Improvement of ignition and burning target design for fast ignition scheme | |||||
| 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 |
Nagatomo, H.
× Nagatomo, H.× Johzaki, T.× Masayasu, Hata× Sentoku, Y.× Fujioka, S.× Mima, K.× Sakagami, H.× Masayasu, Hata |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | For the fast ignition scheme of laser fusion, a highly compressed fuel core is necessary using a cone-inserted spherical solid target. We design an optimal compression method with a multistep laser pulse shape using a 2D radiation hydrodynamics simulation. In the design, the maximum areal density is ρRmax = 0.46 g cm−2 with 8 kJ of implosion laser. Considering the scaling law of hydrodynamic, we obtained 82 kJ and 1.3 MJ for the ignition-scale-target (ρRmax = 1.1 g cm−2) and burning-scale-target (ρRmax = 2.5 g cm−2), respectively. In a preliminary study of hydrodynamic instability in the optimized cone-inserted implosion, there is no significant growth of the instabilities that affect the implosion performance. A parameter search to investigate the feasibility and robustness of a high areal density design for changes in the laser pulse shape is performed. As a result, a delay of several tens of pico-second of the rising laser pulse is acceptable. | |||||
| 書誌情報 |
Nuclear Fusion 巻 61, 号 12, p. 126032, 発行日 2021-11 |
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| 出版者 | ||||||
| 出版者 | IOP Publishing | |||||
| 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/ac2d5a | |||||
| 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/ac2d5a/meta | |||||
