Effects of X-ray pre-ablation on the implosion process for double-cone ignition
The double-cone ignition scheme is a promising novel ignition method, which is expected to greatly save the driver energy and enhance the robustness of the implosion process. In this paper, ablation of the inner surface of the cone by the hard X-ray from coronal Au plasma is studied via radiation hy...
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| Format: | Article |
| Language: | English |
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Cambridge University Press
2025-01-01
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| Series: | High Power Laser Science and Engineering |
| Subjects: | |
| Online Access: | https://www.cambridge.org/core/product/identifier/S2095471925000118/type/journal_article |
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| _version_ | 1850179216921853952 |
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| author | Bihao Xu Xiaohu Yang Ze Li Bo Zeng Zehao Chen Lingrui Li Ye Cui Guobo Zhang Yanyun Ma Jie Zhang |
| author_facet | Bihao Xu Xiaohu Yang Ze Li Bo Zeng Zehao Chen Lingrui Li Ye Cui Guobo Zhang Yanyun Ma Jie Zhang |
| author_sort | Bihao Xu |
| collection | DOAJ |
| description | The double-cone ignition scheme is a promising novel ignition method, which is expected to greatly save the driver energy and enhance the robustness of the implosion process. In this paper, ablation of the inner surface of the cone by the hard X-ray from coronal Au plasma is studied via radiation hydrodynamics simulations. It is found that the X-ray ablation of the inner wall will form strong pre-plasma, which will significantly affect the implosion process and cause the Au plasma to mix with the fuel, leading to ignition failure. The radiation and pre-ablation intensities in the system are estimated, and the evolutions of areal density, ion temperature and the distribution of Au ions are analysed. In addition, the mixing of Au in CH at collision is quantified. Then, a scheme to reduce the X-ray pre-ablation by replacing the gold cone with a tungsten cone is proposed, showing that it is effective in reducing high-Z mixing and improving collision results. |
| format | Article |
| id | doaj-art-17d0eb51f4d54f0aae98d39d1bc93d4a |
| institution | OA Journals |
| issn | 2095-4719 2052-3289 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Cambridge University Press |
| record_format | Article |
| series | High Power Laser Science and Engineering |
| spelling | doaj-art-17d0eb51f4d54f0aae98d39d1bc93d4a2025-08-20T02:18:33ZengCambridge University PressHigh Power Laser Science and Engineering2095-47192052-32892025-01-011310.1017/hpl.2025.11Effects of X-ray pre-ablation on the implosion process for double-cone ignitionBihao Xu0https://orcid.org/0009-0009-9205-0251Xiaohu Yang1Ze Li2Bo Zeng3Zehao Chen4Lingrui Li5Ye Cui6https://orcid.org/0000-0002-6223-3630Guobo Zhang7https://orcid.org/0000-0002-3426-2127Yanyun Ma8Jie Zhang9College of Science, National University of Defense Technology, Changsha, ChinaCollege of Science, National University of Defense Technology, Changsha, ChinaCollege of Science, National University of Defense Technology, Changsha, ChinaCollege of Science, National University of Defense Technology, Changsha, ChinaCollege of Science, National University of Defense Technology, Changsha, ChinaCollege of Science, National University of Defense Technology, Changsha, ChinaCollege of Science, National University of Defense Technology, Changsha, ChinaCollege of Science, National University of Defense Technology, Changsha, ChinaCollege of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha, China Collaborative Innovation Center of IFSA, Shanghai Jiao Tong University, Shanghai, ChinaCollaborative Innovation Center of IFSA, Shanghai Jiao Tong University, Shanghai, China Key Laboratory for Laser Plasmas and School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, ChinaThe double-cone ignition scheme is a promising novel ignition method, which is expected to greatly save the driver energy and enhance the robustness of the implosion process. In this paper, ablation of the inner surface of the cone by the hard X-ray from coronal Au plasma is studied via radiation hydrodynamics simulations. It is found that the X-ray ablation of the inner wall will form strong pre-plasma, which will significantly affect the implosion process and cause the Au plasma to mix with the fuel, leading to ignition failure. The radiation and pre-ablation intensities in the system are estimated, and the evolutions of areal density, ion temperature and the distribution of Au ions are analysed. In addition, the mixing of Au in CH at collision is quantified. Then, a scheme to reduce the X-ray pre-ablation by replacing the gold cone with a tungsten cone is proposed, showing that it is effective in reducing high-Z mixing and improving collision results.https://www.cambridge.org/core/product/identifier/S2095471925000118/type/journal_articledouble-cone ignitionhigh-Z mixingimplosion compressionradiation pre-ablation |
| spellingShingle | Bihao Xu Xiaohu Yang Ze Li Bo Zeng Zehao Chen Lingrui Li Ye Cui Guobo Zhang Yanyun Ma Jie Zhang Effects of X-ray pre-ablation on the implosion process for double-cone ignition High Power Laser Science and Engineering double-cone ignition high-Z mixing implosion compression radiation pre-ablation |
| title | Effects of X-ray pre-ablation on the implosion process for double-cone ignition |
| title_full | Effects of X-ray pre-ablation on the implosion process for double-cone ignition |
| title_fullStr | Effects of X-ray pre-ablation on the implosion process for double-cone ignition |
| title_full_unstemmed | Effects of X-ray pre-ablation on the implosion process for double-cone ignition |
| title_short | Effects of X-ray pre-ablation on the implosion process for double-cone ignition |
| title_sort | effects of x ray pre ablation on the implosion process for double cone ignition |
| topic | double-cone ignition high-Z mixing implosion compression radiation pre-ablation |
| url | https://www.cambridge.org/core/product/identifier/S2095471925000118/type/journal_article |
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