Design of a cone target for fast ignition
We propose a new type of target for the fast ignition of inertial confinement fusion. Pre-formed plasma inside a cone target can significantly reduce the energy coupling efficiency from the ultra-high intense short-pulse laser to the imploded core plasma. Also, in order to protect the tip of the con...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences
2013-11-01
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| Series: | EPJ Web of Conferences |
| Online Access: | http://dx.doi.org/10.1051/epjconf/20135903009 |
| _version_ | 1818765203406323712 |
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| author | Sunahara Atsushi Johzaki Tomoyuki Nagatomo Hideo Mima Kunioki |
| author_facet | Sunahara Atsushi Johzaki Tomoyuki Nagatomo Hideo Mima Kunioki |
| author_sort | Sunahara Atsushi |
| collection | DOAJ |
| description | We propose a new type of target for the fast ignition of inertial confinement fusion. Pre-formed plasma inside a cone target can significantly reduce the energy coupling efficiency from the ultra-high intense short-pulse laser to the imploded core plasma. Also, in order to protect the tip of the cone and reduce generation of pre-formed plasma, we propose pointed shaped cone target. In our estimation, the shock traveling time can be delayed 20–30 ps by lower-Z material with larger areal density compared to the conventional gold flat tip. Also, the jet flow can sweep the blow-off plasma from the tip of the cone, and the implosion performance is not drastically affected by the existence of pointed tip. In addition, the self-generated magnetic field is generated along the boundary of cone tip and surrounding CD or DT plasma. This magnetic field can confine fast electrons and focus to the implosion core plasma. Resultant heating efficiency is improved by 30% compared to that with conventional gold flat tip. |
| first_indexed | 2024-12-18T08:14:22Z |
| format | Article |
| id | doaj.art-98a944d20e004ab28fe287a5e21222ea |
| institution | Directory Open Access Journal |
| issn | 2100-014X |
| language | English |
| last_indexed | 2024-12-18T08:14:22Z |
| publishDate | 2013-11-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | EPJ Web of Conferences |
| spelling | doaj.art-98a944d20e004ab28fe287a5e21222ea2022-12-21T21:14:50ZengEDP SciencesEPJ Web of Conferences2100-014X2013-11-01590300910.1051/epjconf/20135903009Design of a cone target for fast ignitionSunahara AtsushiJohzaki TomoyukiNagatomo HideoMima KuniokiWe propose a new type of target for the fast ignition of inertial confinement fusion. Pre-formed plasma inside a cone target can significantly reduce the energy coupling efficiency from the ultra-high intense short-pulse laser to the imploded core plasma. Also, in order to protect the tip of the cone and reduce generation of pre-formed plasma, we propose pointed shaped cone target. In our estimation, the shock traveling time can be delayed 20–30 ps by lower-Z material with larger areal density compared to the conventional gold flat tip. Also, the jet flow can sweep the blow-off plasma from the tip of the cone, and the implosion performance is not drastically affected by the existence of pointed tip. In addition, the self-generated magnetic field is generated along the boundary of cone tip and surrounding CD or DT plasma. This magnetic field can confine fast electrons and focus to the implosion core plasma. Resultant heating efficiency is improved by 30% compared to that with conventional gold flat tip.http://dx.doi.org/10.1051/epjconf/20135903009 |
| spellingShingle | Sunahara Atsushi Johzaki Tomoyuki Nagatomo Hideo Mima Kunioki Design of a cone target for fast ignition EPJ Web of Conferences |
| title | Design of a cone target for fast ignition |
| title_full | Design of a cone target for fast ignition |
| title_fullStr | Design of a cone target for fast ignition |
| title_full_unstemmed | Design of a cone target for fast ignition |
| title_short | Design of a cone target for fast ignition |
| title_sort | design of a cone target for fast ignition |
| url | http://dx.doi.org/10.1051/epjconf/20135903009 |
| work_keys_str_mv | AT sunaharaatsushi designofaconetargetforfastignition AT johzakitomoyuki designofaconetargetforfastignition AT nagatomohideo designofaconetargetforfastignition AT mimakunioki designofaconetargetforfastignition |