Studies of ultra-intense laser plasma interactions for fast ignition
| Autor: | K. Takahashi, Michiaki Mori, M. Tanpo, S. Matsuo, T. Kawasaki, T. Miyakosi, Kunioki Mima, Yoshiaki Kato, Manabu Heya, Y. Kitagawa, Nobuhiko Izumi, T. Sonomoto, Atsushi Sunahara, Troy W. Barbee, Hirozumi Azuma, H. Fujita, Kazuo Tanaka, T. Yamanaka, Ryosuke Kodama, Alexander Pukhov, T. Matusita, Takayoshi Norimatsu, M. Allen, L. B. DaSilva, O. Maekawa, Yasuhiko Sentoku, T. Komeno, Hideaki Habara, H. Yoshida, Franz A. Weber, Ka Suzuki, S. Tohyama, T. Iwatani, T. Shozaki, N. Miyanaga, H. Setoguchi |
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| Rok vydání: | 2000 |
| Předmět: | |
| Zdroj: | Scopus-Elsevier |
| ISSN: | 1089-7674 1070-664X |
| DOI: | 10.1063/1.874023 |
| Popis: | Laser plasma interactions in a relativistic parameter regime have been intensively investigated for studying the possibility of fast ignition in inertial confinement fusion (ICF). Using ultra-intense laser systems and particle-in-cell (PIC) simulation codes, relativistic laser light self-focusing, super hot electrons, ions, and neutron production, are studied. The experiments are performed with ultra-intense laser with 50 J energy, 0.5–1 ps pulse at 1053 nm laser wavelength at a laser intensity of 1019 W/cm2. Most of the laser shots are studied under preformed plasma conditions with a 100 μm plasma scale length condition. In the study of laser pulse behavior in the preformed plasmas, a special mode has been observed which penetrated the preformed plasma all the way very close to the original planar target surface. On these shots, super hot electrons have been observed with its energy peak exceeding 1 MeV. The energy transport of the hot electrons has been studied with making use of Kα emissions from a see... |
| Databáze: | OpenAIRE |
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