Fast heating of super-solid density plasmas towards laser fusion ignition
We have studied fast heating of highly compressed plasmas using multi 100 TW laser light. Efficient propagation of the ultra-intense laser light and heating of the imploded plasmas were realized with a cone-attached shell target. Energy deposition rate of the ultra-intense laser pulse into high-dens...
| Main Authors: | , , , , , , , , , , , , , , , , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
2002
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| _version_ | 1826282783508529152 |
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| author | Kodama, R Tanaka, K Fujioka, S Fujita, H Habara, H Izawa, Y Jitsuno, T Kitagawa, Y Krushelnick, K Mima, K Miyanaga, N Nagai, K Norreys, P Norimatsu, T Shigemori, K Shiraga, H Toyama, Y Zepf, M Yamanaka, T |
| author_facet | Kodama, R Tanaka, K Fujioka, S Fujita, H Habara, H Izawa, Y Jitsuno, T Kitagawa, Y Krushelnick, K Mima, K Miyanaga, N Nagai, K Norreys, P Norimatsu, T Shigemori, K Shiraga, H Toyama, Y Zepf, M Yamanaka, T |
| author_sort | Kodama, R |
| collection | OXFORD |
| description | We have studied fast heating of highly compressed plasmas using multi 100 TW laser light. Efficient propagation of the ultra-intense laser light and heating of the imploded plasmas were realized with a cone-attached shell target. Energy deposition rate of the ultra-intense laser pulse into high-density plasmas was evaluated from neutron measurements. Generation and propagation property of energetic electrons in the ultra-intense laser interactions were also investigated with solid density targets. About 40% of the laser energy converted to mega electron volts energetic electrons in the interactions with solid targets at intensities of 1019W cm-2. These electrons propagated in the high-density plasmas with a divergence of 20-30° or jet-like collimation. Taking account of these experimental results, heating laser spot size is optimized for laser fusion ignition with a simple estimation. |
| first_indexed | 2024-03-07T00:49:03Z |
| format | Journal article |
| id | oxford-uuid:85bc2e70-893e-4df2-9ec4-87537bbd6cc1 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T00:49:03Z |
| publishDate | 2002 |
| record_format | dspace |
| spelling | oxford-uuid:85bc2e70-893e-4df2-9ec4-87537bbd6cc12022-03-26T21:59:33ZFast heating of super-solid density plasmas towards laser fusion ignitionJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:85bc2e70-893e-4df2-9ec4-87537bbd6cc1EnglishSymplectic Elements at Oxford2002Kodama, RTanaka, KFujioka, SFujita, HHabara, HIzawa, YJitsuno, TKitagawa, YKrushelnick, KMima, KMiyanaga, NNagai, KNorreys, PNorimatsu, TShigemori, KShiraga, HToyama, YZepf, MYamanaka, TWe have studied fast heating of highly compressed plasmas using multi 100 TW laser light. Efficient propagation of the ultra-intense laser light and heating of the imploded plasmas were realized with a cone-attached shell target. Energy deposition rate of the ultra-intense laser pulse into high-density plasmas was evaluated from neutron measurements. Generation and propagation property of energetic electrons in the ultra-intense laser interactions were also investigated with solid density targets. About 40% of the laser energy converted to mega electron volts energetic electrons in the interactions with solid targets at intensities of 1019W cm-2. These electrons propagated in the high-density plasmas with a divergence of 20-30° or jet-like collimation. Taking account of these experimental results, heating laser spot size is optimized for laser fusion ignition with a simple estimation. |
| spellingShingle | Kodama, R Tanaka, K Fujioka, S Fujita, H Habara, H Izawa, Y Jitsuno, T Kitagawa, Y Krushelnick, K Mima, K Miyanaga, N Nagai, K Norreys, P Norimatsu, T Shigemori, K Shiraga, H Toyama, Y Zepf, M Yamanaka, T Fast heating of super-solid density plasmas towards laser fusion ignition |
| title | Fast heating of super-solid density plasmas towards laser fusion ignition |
| title_full | Fast heating of super-solid density plasmas towards laser fusion ignition |
| title_fullStr | Fast heating of super-solid density plasmas towards laser fusion ignition |
| title_full_unstemmed | Fast heating of super-solid density plasmas towards laser fusion ignition |
| title_short | Fast heating of super-solid density plasmas towards laser fusion ignition |
| title_sort | fast heating of super solid density plasmas towards laser fusion ignition |
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