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Skobelev, I. Yu.*; Ryazantsev, S. N.*; Kulikov, R. K.*; Sedov, M. V.*; Filippov, E. D.*; Pikuz, S. A.*; Asai, Takafumi*; Kanasaki, Masato*; Yamauchi, Tomoya*; Jinno, Satoshi; et al.
Photonics (Internet), 10(11), p.1250_1 - 1250_11, 2023/11
Times Cited Count:0 Percentile:0(Optics)It is challenging to clearly distinguish the impacts of the optical field and collisional ionization in the evolution of the charge state of a plasma produced when matter interacts with high-intensity laser pulses. In this work, time-dependent calculations of plasma kinetics are used to show that it is possible only when low-density gaseous targets with sufficiently small clusters are used. In the case of Ar plasma, the upper limit of the cluster radius was estimated to be m.
Kusama, Yoshinori; Yamamoto, Masahiro; JFT-2M Group
Fusion Science and Technology, 49(2), p.89 - 95, 2006/02
Times Cited Count:8 Percentile:49.48(Nuclear Science & Technology)The experimental program on the JFT-2M tokamak started with the first plasma on April 27, 1983 and was completed in March, 2004. In the series of experiments for 21 years, a lot of significant results leading the fusion energy research and plasma physics have been produced. As the first paper of this special issue on all aspect of JFT-2M, this paper reviews the JFT-2M program.
Kawachi, Tetsuya; Sasaki, Akira; Tanaka, Momoko; Kishimoto, Maki; Hasegawa, Noboru; Nagashima, Keisuke; Koike, Masato; Daido, Hiroyuki; Kato, Yoshiaki
Physical Review A, 69(3), p.033805_1 - 033805_4, 2004/03
Times Cited Count:16 Percentile:57.77(Optics)We have observed strong amplification for the 4d-4p transition of the Ni-like La ions at a wavelength of 8.8nm pumped by a chirped pulse amplificatio Nd:glass laser with an energy of 18 J. In this experiment, laser pulses consist of a pre-pulse and a main pulse with duration of 200ps and 7 ps separated by 250ps. The KeV X-ray spectroscopy and theoretical calculation indicate that the plasma temperature increasesd effectively by reducing the prepulse intensity, and that the substantial gain is generated in a small overcritical region heated by the electron heat transport.
Tajima, Toshiki
Computational Plasma Physics, 528 Pages, 2004/01
no abstracts in English
Kawachi, Tetsuya; Kado, Masataka; Tanaka, Momoko; Hasegawa, Noboru; Nagashima, Keisuke; Sukegawa, Kota*; Lu, P.; Takahashi, Kenjiro; Namba, Shinichi; Koike, Masato; et al.
Applied Optics, 42(12), p.2198 - 2205, 2003/04
Times Cited Count:27 Percentile:72.19(Optics)no abstracts in English
Kitsunezaki, Akio; Yoshikawa, Shoichi*
Shin, Kaku Yugo Eno Chosen, 244 Pages, 2003/03
This book explains the recent progress of fusion research mainly on those of tokamaks, and contribute to the public information on fusion R&D. Researches on herical devices and inertial fusion are also briefly described. Consisits of 20 chapters: What is high temperature plasma ? / Current hole / Fusion power generaation / plasma and magnetic field / plasma confinement / particle and heat flow by copllision / heat flow by plasma fluctuation / heat flow by radiation / plasma heating / drive plasma current / plasma diagnostics / plasma and vacuum vessel / heat insulating layer / stellalater / inertial confinement / to fusion reactor / international cooperation / safety of fusion / special use of fusion reactor / future prospects / The contents are consistent with directions and discuusions in committees.
Nagashima, Keisuke
Purazuma, Kaku Yugo Gakkai-Shi, 78(5), p.419 - 426, 2002/05
no abstracts in English
Kubo, Hirotaka; Sugama, Hideo*; Murakami, Masakatsu*; Osawa, Yukiharu*
Purazuma, Kaku Yugo Gakkai-Shi, 77(12), p.1252 - 1253, 2001/12
no abstracts in English
Azumi, Masafumi
Purazuma, Kaku Yugo Gakkai-Shi, 77(5), p.457 - 463, 2001/05
no abstracts in English
Midorikawa, Katsumi*; Hara, Tamio*; Tomie, Toshihisa*; Kawachi, Tetsuya; Kado, Masataka
Purazuma, Kaku Yugo Gakkai-Shi, 77(4), p.372 - 379, 2001/04
no abstracts in English
Kawachi, Tetsuya
Purazuma, Kaku Yugo Gakkai-Shi, 77(2), p.140 - 145, 2001/02
no abstracts in English
Naka Fusion Research Establishment
JAERI-Review 99-022, p.118 - 0, 1999/09
no abstracts in English
Naka Fusion Research Establishment
JAERI-Review 97-013, 116 Pages, 1997/10
no abstracts in English
Naka Fusion Research Establishment
JAERI-Review 96-016, 110 Pages, 1996/11
no abstracts in English
Kimura, Haruyuki
Purazuma, Kaku Yugo Gakkai-Shi, 72(2), p.170 - 171, 1996/02
no abstracts in English
Naka Fusion Research Establishment
JAERI-M 93-193, 127 Pages, 1993/10
no abstracts in English
JAERI-M 82-154, 169 Pages, 1982/11
no abstracts in English
Moribayashi, Kengo
no journal, ,
no abstracts in English
Asai, Takafumi*; Inoue, Chihiro*; Toyonaga, Keita*; Jinno, Satoshi; Ryazantsev, S.*; Pikuz, T.*; Yamauchi, Tomoya*; Kanasaki, Masato*; Fukuda, Yuji*
no journal, ,
The J-KAREN-P laser at the Kansai Photon Science Institute was irradiated to a cluster target and confirmed the second harmonic generation. Polarization measurements of the generated second harmonic revealed that the polarization plane of the component that passed through the laser-generated plasma was rotated. This result suggests that a vortex-like magnetic field centered on the laser axis is generated.