Zobrazeno 1 - 10
of 62
pro vyhledávání: '"Tetsuo Ozaki"'
Autor:
Tomokazu Ikeda, Yumi Kaneyasu, Hitomi Hosokawa, Keisuke Shigemori, Takayoshi Norimastu, Marilou Cadatal-Raduban, Keiji Nagai, Sadaoki Kojima, Yuki Abe, Eisuke Miura, Yoneyoshi Kitagawa, Mao Takemura, Yubo Wang, Jinyuan Dun, Shuwang Guo, Shoui Asano, Ryunosuke Takizawa, Shinsuke Fujioka, Hiroyuki Shiraga, Yasunobu Arikawa, Tetsuo Ozaki, Akifumi Iwamoto, Hitoshi Sakagami, Hiroshi Sawada, Yoshitaka Mori, Kohei Yamanoi
Publikováno v:
Nuclear Fusion, Vol 63, Iss 1, p 016010 (2022)
In high-energy-density physics, including inertial fusion energy using high-power lasers, doping tracer atoms and deuteration of target materials play an important role in diagnosis. For example, a low-concentration Cu dopant acts as an x-ray source
Externí odkaz:
https://doaj.org/article/20153c1905104a06a7088eea6c6ed261
Autor:
Shohei Sakata, Seungho Lee, Hiroki Morita, Tomoyuki Johzaki, Hiroshi Sawada, Yuki Iwasa, Kazuki Matsuo, King Fai Farley Law, Akira Yao, Masayasu Hata, Atsushi Sunahara, Sadaoki Kojima, Yuki Abe, Hidetaka Kishimoto, Aneez Syuhada, Takashi Shiroto, Alessio Morace, Akifumi Yogo, Natsumi Iwata, Mitsuo Nakai, Hitoshi Sakagami, Tetsuo Ozaki, Kohei Yamanoi, Takayoshi Norimatsu, Yoshiki Nakata, Shigeki Tokita, Noriaki Miyanaga, Junji Kawanaka, Hiroyuki Shiraga, Kunioki Mima, Hiroaki Nishimura, Mathieu Bailly-Grandvaux, João Jorge Santos, Hideo Nagatomo, Hiroshi Azechi, Ryosuke Kodama, Yasunobu Arikawa, Yasuhiko Sentoku, Shinsuke Fujioka
Publikováno v:
Nature Communications, Vol 9, Iss 1, Pp 1-9 (2018)
It is desirable to deposit more energy in the dense plasma core to trigger the fusion ignition. Here the authors demonstrate enhanced energy coupling from laser to plasma core by using solid targets and guiding the transport of relativistic electron
Externí odkaz:
https://doaj.org/article/1aebef0589a84791be1e4b43c25ee400
Autor:
Sadaoki Kojima, Yuki Abe, Eisuke Miura, Tetsuo Ozaki, Kohei Yamanoi, Tomokazu Ikeda, Yubo Wang, Jinyuan Dun, Shuwang Guo, Tamaki Maekawa, Ryunosuke Takizawa, Hiroki Morita, Shoui Asano, Yasunobu Arikawa, Hiroshi Sawada, Katsuhiro Ishii, Ryohei Hanayama, Shinichiro Okihara, Yoneyoshi Kitagawa, Yasuhiro Kajimura, Alessio Morace, Hiroyuki Shiraga, Keisuke Shigemori, Atsushi Sunahara, Natsumi Iwata, Takayoshi Sano, Yasuhiko Sentoku, Tomoyuki Johzaki, Masaharu Nishikino, Akifumi Iwamoto, Kenichi Nagaoka, Hitoshi Sakagami, Shinsuke Fujioka, Yoshitaka Mori
Publikováno v:
Optics Express. 30:43491
A counter-propagating laser-beam platform using a spherical plasma mirror was developed for the kilojoule-class petawatt LFEX laser. The temporal and spatial overlaps of the incoming and redirected beams were measured with an optical interferometer a
Autor:
Yoneyoshi Kitagawa, Yoshitaka Mori, Katsuhiro Ishii, Ryohei Hanayama, Shinichiro Okihara, Yasunobu Arikawa, Yuki Abe, Eisuke Miura, Tetsuo Ozaki, Osamu Komeda, Hiroyuki Suto, Yusuke Umetani, Atsushi Sunahra, Tomoyuki Johzaki, Hitoshi Sakagami, Akifumi Iwamoto, Yasuhiko Sentoku, Nozomi Nakajima, Shohei Sakata, Kazuki Matsuo, Reza S. Mirfayzi, Junji Kawanaka, Shinsuke Fujiokua, Koji Tsubakimoto, Keisuke Shigemori, Kohei Yamanoi, Akifumi Yogo, Ayami Nakao, Masatada Asano, Hiroyuki Shiraga, Tomoyoshi Motohiro, Tatsumi Hioki, Hirozumi Azuma
Publikováno v:
Yoneyoshi Kitagawa et al 2022 Nucl. Fusion 62 096013
Fast heating efficiency when a pre-imploded core is directly heated with an ultraintense laser (heating laser) was investigated. ‘Direct heating’ means that a heating laser hits a pre-imploded core without applying either a laser guiding cone or
Publikováno v:
Progress in Nuclear Science and Technology. 6:48-51
Autor:
Tetsuo OZAKI, Eisuke MIURA, Sadaoki KOJIMA, Yasunobu ARIKAWA, Yuuki ABE, Kohei YAMANOI, Tomokazu IKEDA, Katsuhiro ISHII, Atsushi SUNAHARA, Tomoyuki JOHZAKI, Hiroshi SAWADA, Shinsuke FUJIOKA, Hitoshi SAKAGAMI, Yoneyoshi KITAGAWA, Yoshitaka MORI
Publikováno v:
Plasma and Fusion Research. 17:2404084-2404084
In the counter-irradiation, which is one of the fast ignition schemes, higher core energy coupling can be expected when there are two hot electron flows in counter directions. Two plasma mirrors were installed for the counter irradiation at about 180
Autor:
Yuki Iwasa, Hiroki Morita, Alessio Morace, Kohei Yamanoi, Hiroshi Sawada, S. Lee, Aneez Syuhada, Yuki Abe, King Fai Farley Law, Hiroyuki Shiraga, Ryosuke Kodama, Tomoyuki Johzaki, Noriaki Miyanaga, Yasunobu Arikawa, Shohei Sakata, Akifumi Yogo, Hiroshi Azechi, Hitoshi Sakagami, Kazuki Matsuo, Hidetaka Kishimoto, Yasuhiko Sentoku, Masayasu Hata, Shigeki Tokita, Sadaoki Kojima, Atsushi Sunahara, Takayoshi Norimatsu, Mitsuo Nakai, Kunioki Mima, Mathieu Bailly-Grandvaux, Natsumi Iwata, Hideo Nagatomo, Tetsuo Ozaki, Akira Yao, Joao Santos, Hiroaki Nishimura, Junji Kawanaka, Yoshiki Nakata, Shinsuke Fujioka, Takashi Shiroto
Publikováno v:
Nature Communications, Vol 9, Iss 1, Pp 1-9 (2018)
Nature Communications
Nature Communications
Fast isochoric heating of a pre-compressed plasma core with a high-intensity short-pulse laser is an attractive and alternative approach to create ultra-high-energy-density states like those found in inertial confinement fusion (ICF) ignition sparks.
Autor:
Akifumi Yogo, Yasuhiko Sentoku, Hiroki Morita, Alessio Morace, Tetsuo Ozaki, J. J. Santos, Seung Ho Lee, Ph. Korneev, M. Nakai, S. Sakata, M. Ehret, Chang Liu, Yugo Ochiai, Shinsuke Fujioka, Yasuhiro Abe, D. Golovin, Emmanuel d'Humières, Yasunobu Arikawa, King Fai Farley Law, Kiyoko Okamoto, Kazuki Matsuo
Publikováno v:
Physical review. E. 102(3-1)
Magnetic reconnection in a relativistic electron magnetization regime was observed in a laboratory plasma produced by a high-intensity, large energy, picoseconds laser pulse. Magnetic reconnection conditions realized with a laser-driven several kilot
Autor:
Hiroyuki Shiraga, Shohei Sakata, King Fai Farley Law, Sadaoki Kojima, Mitsuo Nakai, Kunioki Mima, Yoshiki Nakata, Takayoshi Sano, Yuki Abe, Atsushi Sunahara, Kohei Yamanoi, Yugo Ochiai, Seung Ho Lee, Shinsuke Fujioka, Yuki Iwasa, Tetsuo Ozaki, Takayoshi Norimatsu, Yasunobu Arikawa, Hiroshi Sawada, Yasuhiko Sentoku, Tomoyuki Johzaki, Masayasu Hata, Shigeki Tokita, Naoki Higashi, Natsumi Iwata, Hiroki Morita, Alessio Morace, Akifumi Yogo, Ryosuke Kodama, Hiroshi Azechi, Hideo Nagatomo, Hitoshi Sakagami, Kazuki Matsuo, Junji Kawanaka
Fast isochoric laser heating is a scheme to heat a matter with relativistic-intensity ($>$ 10$^{18}$ W/cm$^2$) laser pulse or X-ray free electron laser pulse. The fast isochoric laser heating has been studied for creating efficiently ultra-high-energ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::68c86820589db418db992739a747da2a
Autor:
Tetsuo Ozaki, Takeo Nishitani, Masaki Osakabe, Kunihiro Ogawa, Mitsutaka Isobe, Kenji Saito, Shuji Kamio
Publikováno v:
Plasma and Fusion Research. 14:3405048-3405048
The Compact Neutral Particle Analyzer (CNPA) is an E//B type neutral particle energy analyzer using permanent magnets. CNPA is installed on the diagnostic platform and connected to the outside horizontal port. Based on the preliminary shielding desig