Zobrazeno 1 - 10
of 757
pro vyhledávání: '"Sakawa Y"'
Autor:
Sakawa, Y., Ishihara, H., Ryazantsev, S. N., Alkhimova, M. A., Kumar, R., Kuramoto, O., Matsumoto, Y., Ota, M., Egashira, S., Nakagawa, Y., Minami, T., Sakai, K., Taguchi, T., Habara, H., Kuramitsu, Y., Morace, A., Abe, Y., Arikawa, Y., Fujioka, S., Kanasaki, M., Asai, T., Morita, T., Fukuda, Y., Pikuz, S., Pikuz, T., Ohira, Y., Doehl, L. N. K., Woolsey, N., Sano, T.
An experimental investigation of collisionless shock ion acceleration is presented using a multicomponent plasma and a high-intensity picosecond duration laser pulse. Protons are the only accelerated ions when a near-critical-density plasma is driven
Externí odkaz:
http://arxiv.org/abs/2408.13088
Autor:
Sakai, K., Huang, T. Y., Khasanah, N., Bolouki, N., Chu, H. H., Moritaka, T., Sakawa, Y., Sano, T., Tomita, K., Matsukiyo, S., Morita, T., Takabe, H., Yamazaki, R., Yasuhara, R., Habara, H., Kuramitsu, Y.
Publikováno v:
High Energy Density Phys. 52, 101132 (2024)
We investigate the competition of magnetic reconnections in self-generated and external magnetic fields in laser-produced plasmas. The temporal evolution of plasma structures measured with self-emission imaging shows the vertical expansions and horiz
Externí odkaz:
http://arxiv.org/abs/2407.07075
Autor:
Sakai, K., Isayama, S., Bolouki, N., Habibi, M. S., Liu, Y. L., Hsieh, Y. H., Chu, H. H., Wang, J., Chen, S. H., Morita, T., Tomita, K., Yamazaki, R., Sakawa, Y., Matsukiyo, S., Kuramitsu, Y.
Publikováno v:
Phys. Plasmas 27, 103104 (2020)
We investigate collective Thomson scattering (CTS) in two-stream non-equilibrium plasmas analytically, numerically and experimentally. In laboratory astrophysics, CTS is a unique tool to obtain local plasma diagnostics. While the standard CTS theory
Externí odkaz:
http://arxiv.org/abs/2210.11382
Autor:
Morita, T., Matsukiyo, S., Isayama, S., Kojima, T., Matsuo, S., Pan, Y., Yamazaki, R., Tanaka, S. J., Aihara, K., Sato, Y., Shiota, J., Tomita, K., Takezaki, T., Kuramitsu, Y., Sakai, K., Egashira, S., Ishihara, H., Kuramoto, O., Matsumoto, Y., Maeda, K., Sakawa, Y.
Magnetic reconnection in laser-produced magnetized plasma is investigated by using optical diagnostics. The magnetic field is generated via Biermann battery effect, and the inversely directed magnetic field lines interact with each other. It is shown
Externí odkaz:
http://arxiv.org/abs/2209.11975
Autor:
Matsukiyo, S., Yamazaki, R., Morita, T., Tomita, K., Kuramitsu, Y., Tanaka, S. J., Takezaki, T., Isayama, S., Higuchi, T., Murakami, H., Horie, Y., Katsuki, N., Hatsuyama, R., Edamoto, M., Nishioka, H., Takagi, M., Kojima, T., Tomita, S., Ishizaka, N., Kakuchi, S., Sei, S., Sugiyama, K., Aihara, K., Kambayashi, S., Ota, M., Egashira, S., Izumi, T., Minami, T., Nakagawa, Y., Sakai, K., Iwamoto, M., Ozaki, N., Sakawa, Y.
A developing supercritical collisionless shock propagating in a homogeneously magnetized plasma of ambient gas origin having higher uniformity than the previous experiments is formed by using high-power laser experiment. The ambient plasma is not con
Externí odkaz:
http://arxiv.org/abs/2207.12586
Autor:
Yamazaki, Ryo, Matsukiyo, S., Morita, T., Tanaka, S. J., Umeda, T., Aihara, K., Edamoto, M., Egashira, S., Hatsuyama, R., Higuchi, T., Hihara, T., Horie, Y., Hoshino, M., Ishii, A., Ishizaka, N., Itadani, Y., Izumi, T., Kambayashi, S., Kakuchi, S., Katsuki, N., Kawamura, R., Kawamura, Y., Kisaka, S., Kojima, T., Konuma, A., Kumar, R., Minami, T., Miyata, I., Moritaka, T., Murakami, Y., Nagashima, K., Nakagawa, Y., Nishimoto, T., Nishioka, Y., Ohira, Y., Ohnishi, N., Ota, M., Ozaki, N., Sano, T., Sakai, K., Sei, S., Shiota, J., Shoji, Y., Sugiyama, K., Suzuki, D., Takagi, M., Toda, H., Tomita, S., Tomiya, S., Yoneda, H., Takezaki, T., Tomita, K., Kuramitsu, Y., Sakawa, Y.
Publikováno v:
Phys. Rev. E, 105, 025203 (2022)
We present a new experimental method to generate quasi-perpendicular supercritical magnetized collisionless shocks. In our experiment, ambient nitrogen (N) plasma is at rest and well-magnetized, and it has uniform mass density. The plasma is pushed b
Externí odkaz:
http://arxiv.org/abs/2201.07976
Autor:
Morita T., Sakawa Y., Kuramitsu Y., Ide T., Nishio K., Kuwada M., Ide H., Tsubouchi K., Yoneda H., Nishida A., Namiki T., Norimatsu T., Tomita K., Nakayama K., Inoue K., Uchino K., Nakatsutsumi M., Pelka A., Koenig M., Dong Q., Yuan D., Gregori G., Takabe H.
Publikováno v:
EPJ Web of Conferences, Vol 59, p 15004 (2013)
Collisionless shocks are produced in counter-streaming plasmas with an external magnetic field. The shocks are generated due to an electrostatic field generated in counter-streaming laser-irradiated plasmas, as reported previously in a series of expe
Externí odkaz:
https://doaj.org/article/48d6c52f1560491a84988b975f62e9b9
Autor:
Shiraga H., Fujioka S., Nakai M., Watari T., Nakamura H., Arikawa Y., Hosoda H., Nagai T., Koga M., Kikuchi H., Ishii Y., Sogo T., Shigemori K., Nishimura H., Zhang Z., Tanabe M., Ohira S., Fujii Y., Namimoto T., Sakawa Y., Maegawa O., Ozaki T., Tanaka K.A., Habara H., Iwawaki T., Shimada K., Key M., Norreys P., Pasley J., Nagatomo H., Johzaki T., Sunahara A., Murakami M., Sakagami H., Taguchi T., Norimatsu T., Homma H., Fujimoto Y., Iwamoto A., Miyanaga N., Kawanaka J., Kanabe T., Jitsuno T., Nakata Y., Tsubakimoto K., Sueda K., Kodama R., Kondo K., Morio N., Matsuo S., Kawasaki T., Sawai K., Tsuji K., Murakami H., Sarukura N., Shimizu T., Mima K., Azechi H.
Publikováno v:
EPJ Web of Conferences, Vol 59, p 01008 (2013)
The FIREX-1 project, the goal of which is to demonstrate fuel heating up to 5 keV by fast ignition scheme, has been carried out since 2003 including construction and tuning of LFEX laser and integrated experiments. Implosion and heating experiment of
Externí odkaz:
https://doaj.org/article/b9a0941657f543f481eeb4740ed73eff
Autor:
Sakawa Y., Kuramitsu Y., Morita T., Kato T., Tanji H., Ide T., Nishio K., Kuwada M., Tsubouchi T., Ide H., Norimatsu T., Gregory C., Woolsey N., Schaar K., Murphy C., Gregori G., Diziere A., Pelka A., Koenig M., Wang S., Dong Q., Li Y., Park H.-S., Ross S., Kugland N., Ryutov D., Remington B., Spitkovsky A., Froula D., Takabe H.
Publikováno v:
EPJ Web of Conferences, Vol 59, p 15001 (2013)
A collisionless Weibel-instability mediated shock in a self-generated magnetic field is studied using two-dimensional particle-in-cell simulation [Kato and Takabe, Astophys. J. Lett. 681, L93 (2008)]. It is predicted that the generation of the Weibel
Externí odkaz:
https://doaj.org/article/0f6d431bf55d4645952a08f839d170e4
Autor:
Nishio K., Sakawa Y., Kuramitsu Y., Morita T., Ide T., Kuwada M., Koga M., Kato T., Norimatsu T., Gregory C., Woolsey N., Murphy C., Gregori G., Schaar K., Diziere A., Koenig M., Pelka A., Wang S., Dong Q., Li Y., Takabe H.
Publikováno v:
EPJ Web of Conferences, Vol 59, p 15005 (2013)
The experiments to simulate astrophysical jet generation are performed using Gekko XII (GXII) HIPER laser system at the Institute of Laser Engineering. In the experiments a fast plasma flow generated by shooting a CH plane (10 μm thickness) is obser
Externí odkaz:
https://doaj.org/article/246f3cc5e76e4c6a896ccca395955798