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Your search keyword '"Azechi, Hiroshi"' showing total 14 results
Start Over Author "Azechi, Hiroshi" Publisher elsevier b.v.
14 results on '"Azechi, Hiroshi"'

1. Effect of irradiation uniformity on quasi-isentropic shock compression of solid spheres

Author

Takizawa, Ryunosuke, Sakagami, Hitoshi, Nagatomo, Hideo, Arikawa, Yasunobu, Morita, Hiroki, Dun, Jinyuan, Tsuido, Takumi, Karaki, Yuga, Matsubara, Hiroki, Law, King Fai Farley, Katagiri, Kento, Ozaki, Norimasa, Hironaka, Yoichiro, Shigemori, Keisuke, Abe, Yuki, Habara, Hideaki, Kuramitsu, Yasuhiro, Johzaki, Tomoyuki, Nakai, Mitsuo, Shiraga, Hiroyuki, Azechi, Hiroshi, Kodama, Ryosuke, Sentoku, Yasuhiko, and Fujioka, Shinsuke

Published
2024
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2. Flash X-ray backlight technique using a Fresnel phase zone plate for measuring interfacial instability

Author

Matsuo, Kazuki, Sano, Takayoshi, Ishigure, Kazuki, Kato, Hiroki, Nagamatsu, Natsuko, Baojun, Zhu, Shuwang, Guo, Nagatomo, Hideo, Philippe, Nicolai, Sakawa, Youichi, Arikawa, Yasunobu, Sakata, Shohei, Lee, SeungHo, Farley Law, King Fai, Morita, Hiroki, Liu, Chang, Li, Huan, Nishibata, Jo, Takizawa, Ryunosuke, Azechi, Hiroshi, and Fujioka, Shinsuke

Published
2020
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5. ZnO crystal as a potential damage-recoverable window material for fusion reactors

Author

Yamanoi, Kohei, Empizo, Melvin John F., Mori, Kazuyuki, Iwano, Keisuke, Minami, Yuki, Arita, Ren, Iwasa, Yuki, Fukuda, Kazuhito, Kato, Kosaku, Takano, Keisuke, Shimizu, Toshihiko, Nakajima, Makoto, Yoshimura, Masashi, Sarukura, Nobuhiko, Norimatsu, Takayoshi, Hangyo, Masanori, Azechi, Hiroshi, Fukuda, Tsuguo, Singidas, Bess G., Sarmago, Roland V., Oya, Makoto, and Ueda, Yoshio

Published
2016
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8. Pr or Ce-doped, fast-response and low-afterglow cross-section-enhanced scintillator with 6Li for down-scattered neutron originated from laser fusion

Author

Watanabe, Kozue, Arikawa, Yasunobu, Yamanoi, Kohei, Cadatal-Raduban, Marilou, Nagai, Takahiro, Kouno, Masahiro, Sakai, Kohei, Nazakato, Tomoharu, Shimizu, Toshihiko, Sarukura, Nobuhiko, Nakai, Mitsuo, Norimatsu, Takayoshi, Azechi, Hiroshi, Yoshikawa, Akira, Murata, Takahiro, Fujino, Shigeru, Yoshida, Hideki, Izumi, Nobuhiko, Satoh, Nakahiro, and Kan, Hirofumi

Published
2013
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9. Optical and scintillation properties of Pr-doped Li-glass for neutron detection in inertial confinement fusion process

Author

Fukabori, Akihiro, Yanagida, Takayuki, Chani, Valery, Moretti, Federico, Pejchal, Jan, Yokota, Yuui, Kawaguchi, Noriaki, Kamada, Kei, Watanabe, Ken-ichi, Murata, Takahiro, Arikawa, Yasunobu, Yamanoi, Kohei, Shimizu, Toshihiko, Sarukura, Nobuhiko, Nakai, Mitsuo, Norimatsu, Takayoshi, Azechi, Hiroshi, Fujino, Shigeru, Yoshida, Hideki, and Yoshikawa, Akira

Published
2011
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10. Custom-designed scintillator for laser fusion diagnostics – Pr 3+-doped fluoro-phosphate lithium glass scintillator

Author

Arikawa, Yasunobu, Yamanoi, Kohei, Nakazato, Tomoharu, Estacio, Elmer Surat, Shimizu, Toshihiko, Sarukura, Nobuhiko, Nakai, Mitsuo, Norimatsu, Takayoshi, Hironaka, Youichirou, Azechi, Hiroshi, Murata, Takahiro, Fujino, Shigeru, Yoshida, Hideki, Kamada, Kei, Usuki, Yoshiyuki, Suyama, Toshihisa, Yoshikawa, Akira, Satoh, Nakahiro, and Kan, Hirohumi

Published
2010
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11. Effect of irradiation uniformity on quasi-isentropic shock compression of solid spheres

Author

Takizawa, Ryunosuke, Sakagami, Hitoshi, Nagatomo, Hideo, Arikawa, Yasunobu, Morita, Hiroki, Dun, Jinyuan, Tsuido, Takumi, Karaki, Yuga, Matsubara, Hiroki, Law, King Fai Farley, Katagiri, Kento, Ozaki, Norimasa, Hironaka, Yoichiro, Shigemori, Keisuke, Abe, Yuki, Habara, Hideaki, Kuramitsu, Yasuhiro, Johzaki, Tomoyuki, Nakai, Mitsuo, Shiraga, Hiroyuki, Azechi, Hiroshi, Kodama, Ryosuke, Sentoku, Yasuhiko, Fujioka, Shinsuke, Takizawa, Ryunosuke, Sakagami, Hitoshi, Nagatomo, Hideo, Arikawa, Yasunobu, Morita, Hiroki, Dun, Jinyuan, Tsuido, Takumi, Karaki, Yuga, Matsubara, Hiroki, Law, King Fai Farley, Katagiri, Kento, Ozaki, Norimasa, Hironaka, Yoichiro, Shigemori, Keisuke, Abe, Yuki, Habara, Hideaki, Kuramitsu, Yasuhiro, Johzaki, Tomoyuki, Nakai, Mitsuo, Shiraga, Hiroyuki, Azechi, Hiroshi, Kodama, Ryosuke, Sentoku, Yasuhiko, and Fujioka, Shinsuke

Abstract

Takizawa R., Sakagami H., Nagatomo H., et al. Effect of irradiation uniformity on quasi-isentropic shock compression of solid spheres. High Energy Density Physics 52, 101124 (2024); https://doi.org/10.1016/j.hedp.2024.101124., In inertial confinement fusion using central ignition, the ignition hot spot is generated through self-heating during fuel compression. In contrast, fast ignition creates the hot spot through external heating. This difference allows the fast ignition approach to use a solid sphere as the fusion fuel shape. The implosion of a solid sphere is one form of laser-direct-drive slow implosion. Solid sphere fuel exhibits tolerance to hydrodynamic instability and can be mass-produced relatively easily, offering significant advantages for developing inertial fusion energy. Achieving high fuel peak and areal densities of with a solid sphere requires quasi-isentropic compression, which involves multiple shock waves. Our results show the critical role of uniform laser irradiation in initiating weak shock waves in the early phase, which is essential for forming a uniform and dense fuel core with solid spheres. Furthermore, dynamically adjusting the laser spot diameter could be crucial in optimizing the effectiveness of laser-direct-drive and fast ignition techniques when using solid sphere fuel.

12. Effect of irradiation uniformity on quasi-isentropic shock compression of solid spheres

Author

Takizawa, Ryunosuke, Sakagami, Hitoshi, Nagatomo, Hideo, Arikawa, Yasunobu, Morita, Hiroki, Dun, Jinyuan, Tsuido, Takumi, Karaki, Yuga, Matsubara, Hiroki, Law, King Fai Farley, Katagiri, Kento, Ozaki, Norimasa, Hironaka, Yoichiro, Shigemori, Keisuke, Abe, Yuki, Habara, Hideaki, Kuramitsu, Yasuhiro, Johzaki, Tomoyuki, Nakai, Mitsuo, Shiraga, Hiroyuki, Azechi, Hiroshi, Kodama, Ryosuke, Sentoku, Yasuhiko, Fujioka, Shinsuke, Takizawa, Ryunosuke, Sakagami, Hitoshi, Nagatomo, Hideo, Arikawa, Yasunobu, Morita, Hiroki, Dun, Jinyuan, Tsuido, Takumi, Karaki, Yuga, Matsubara, Hiroki, Law, King Fai Farley, Katagiri, Kento, Ozaki, Norimasa, Hironaka, Yoichiro, Shigemori, Keisuke, Abe, Yuki, Habara, Hideaki, Kuramitsu, Yasuhiro, Johzaki, Tomoyuki, Nakai, Mitsuo, Shiraga, Hiroyuki, Azechi, Hiroshi, Kodama, Ryosuke, Sentoku, Yasuhiko, and Fujioka, Shinsuke

Abstract

Takizawa R., Sakagami H., Nagatomo H., et al. Effect of irradiation uniformity on quasi-isentropic shock compression of solid spheres. High Energy Density Physics 52, 101124 (2024); https://doi.org/10.1016/j.hedp.2024.101124., In inertial confinement fusion using central ignition, the ignition hot spot is generated through self-heating during fuel compression. In contrast, fast ignition creates the hot spot through external heating. This difference allows the fast ignition approach to use a solid sphere as the fusion fuel shape. The implosion of a solid sphere is one form of laser-direct-drive slow implosion. Solid sphere fuel exhibits tolerance to hydrodynamic instability and can be mass-produced relatively easily, offering significant advantages for developing inertial fusion energy. Achieving high fuel peak and areal densities of with a solid sphere requires quasi-isentropic compression, which involves multiple shock waves. Our results show the critical role of uniform laser irradiation in initiating weak shock waves in the early phase, which is essential for forming a uniform and dense fuel core with solid spheres. Furthermore, dynamically adjusting the laser spot diameter could be crucial in optimizing the effectiveness of laser-direct-drive and fast ignition techniques when using solid sphere fuel.

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