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Journal Articles

Development of a compact high voltage pulse power supply of MARX-type for muon linac klystron

Takayanagi, Tomohiro; Fuwa, Yasuhiro; Otani, Masashi*; Shimomura, Koichiro*; Mibe, Tsutomu*; Kondo, Yasuhiro; Futatsukawa, Kenta*; Cicek, E.*; Nakazawa, Yuga*; Tokuchi, Akira*; et al.

Proceedings of 16th International Particle Accelerator Conference (IPAC25) (Internet), p.1884 - 1886, 2025/11

We have been developing a compact pulse power supply with high output and high frequency specifications: output voltage of 75 kV, current of 40 A, main pulse width of 50 us, and repetition frequency of 25 Hz for short pulse waveforms. This power supply is used to drive klystron for muon linac, which requires high stability and reliability. It uses a next-generation power semiconductor SiC-MOSFET with excellent characteristics of ultra-high withstand voltage of 13 kV and low loss, which was realized through the technological development of wide band gap semiconductor devices. Combining this SiC-MOSFET with the Marx circuit that generates ultra-high voltage pulses will realize a more compact pulse power supply with lower losses than conventional ones. In addition, future ap-plications in portable accelerators are also possible. In this presentation, the circuit design of the Marx power supply will be reported.

Journal Articles

Sodium-cooled Fast Reactors

Ohshima, Hiroyuki; Morishita, Masaki*; Aizawa, Kosuke; Ando, Masanori; Ashida, Takashi; Chikazawa, Yoshitaka; Doda, Norihiro; Enuma, Yasuhiro; Ezure, Toshiki; Fukano, Yoshitaka; et al.

Sodium-cooled Fast Reactors; JSME Series in Thermal and Nuclear Power Generation, Vol.3, 631 Pages, 2022/07

This book is a collection of the past experience of design, construction, and operation of two reactors, the latest knowledge and technology for SFR designs, and the future prospects of SFR development in Japan. It is intended to provide the perspective and the relevant knowledge to enable readers to become more familiar with SFR technology.

Journal Articles

Investigation of causality in the H-L transition on the JFT-2M tokamak

; ; ; ; ; ; ; Oikawa, Toshihiro; ; ; et al.

Fusion Energy 1996, p.885 - 890, 1997/05

no abstracts in English

Journal Articles

Divertor biasing effects to reduce L/H power threshold in the JFT-2M tokamak

Miura, Yukitoshi; ; ; Hoshino, Katsumichi; ; ; Kasai, Satoshi; Kawakami, Tomohide; Kawashima, Hisato; Maeda, M.*; et al.

Fusion Energy 1996, p.167 - 175, 1997/05

no abstracts in English

Journal Articles

ELM control and boundary plasma modification in the JFT-2M tokamak

Tamai, Hiroshi; Shoji, Teruaki; Miura, Yukitoshi; Nagashima, Keisuke; Kawashima, Hisato; Matsuda, Toshiaki; Ogawa, Hiroaki; Maeno, Masaki; Yamauchi, Toshihiko; Uehara, Kazuya; et al.

IAEA-CN-60/A1-7, 0, p.137 - 144, 1995/00

no abstracts in English

Journal Articles

Disruption control by ECH in the JFT-2M tokamak

Hoshino, Katsumichi; ; ; Kawakami, Tomohide; Kawashima, Hisato; Maeda, Hikosuke; Maeno, Masaki; Matsuda, Toshiaki; Miura, Yukitoshi; Nagashima, Keisuke; et al.

IAEA-CN-60/A5-9 (Vol.1), 0, p.697 - 704, 1995/00

no abstracts in English

Journal Articles

Suppression of disruptions with ECH on JFT-2M

Hoshino, Katsumichi; Mori, Masahiro; Yamamoto, Takumi; Tamai, Hiroshi; Shoji, Teruaki; Miura, Yukitoshi; ; Kasai, Satoshi; Kawakami, Tomohide; Kawashima, Hisato; et al.

Radio Frequency Power in Plasmas; AIP Conf. Proceedings 289, p.149 - 156, 1994/00

no abstracts in English

Journal Articles

Avoidance of q$$_{a}$$=3 disruption by electron cyclotron heating in the JFT-2M tokamak

Hoshino, Katsumichi; Mori, Masahiro; Yamamoto, Takumi; Tamai, Hiroshi; Shoji, Teruaki; Miura, Yukitoshi; ; Kasai, Satoshi; Kawakami, Tomohide; Kawashima, Hisato; et al.

Physical Review Letters, 69(15), p.2208 - 2211, 1992/10

 Times Cited Count:72 Percentile:89.87(Physics, Multidisciplinary)

no abstracts in English

Journal Articles

Effects of ergodization on plasma confinement in JFT-2M

Shoji, Teruaki; Tamai, Hiroshi; Miura, Yukitoshi; Mori, Masahiro; Ogawa, Hiroaki; A.W.Leonard*; T.Jensen*; A.W.Hyatt*; A.M.Howald*; Fuchs, G.*; et al.

Journal of Nuclear Materials, 196-198, p.296 - 300, 1992/00

 Times Cited Count:38 Percentile:93.40(Materials Science, Multidisciplinary)

no abstracts in English

Journal Articles

Studies of improved confinement on JFT-2M

Miura, Yukitoshi; ; Hoshino, Katsumichi; Kasai, Satoshi; Kawakami, Tomohide; Kawashima, Hisato; Maeda, Hikosuke; Matsuda, Toshiaki; Mori, Masahiro; Odajima, Kazuo; et al.

Plasma Physics and Controlled Nuclear Fusion Research 1990, Vol.1, p.325 - 333, 1991/00

no abstracts in English

Journal Articles

Impurity behavior during the H-mode in JFT-2M

Ogawa, Hiroaki; Kasai, Satoshi; Tamai, Hiroshi; Kawashima, Hisato; ; Yamauchi, Toshihiko; Mori, Masahiro; Miura, Yukitoshi; Suzuki, Norio; Sengoku, Seio; et al.

Journal of the Physical Society of Japan, 59(11), p.3962 - 3976, 1990/11

 Times Cited Count:4 Percentile:45.91(Physics, Multidisciplinary)

no abstracts in English

Journal Articles

Ion Bernstein wave experiment on JFT-2M tokamak

Tamai, Hiroshi; Ogawa, Toshihide; Matsumoto, Hiroshi; Odajima, Kazuo; ; Hoshino, Katsumichi; Kasai, Satoshi; Kawakami, Tomohide; Kawashima, Hisato; Kondoh, Takashi; et al.

Japanese Journal of Applied Physics, 29(10), p.L1911 - L1914, 1990/10

 Times Cited Count:1 Percentile:9.91(Physics, Applied)

no abstracts in English

Journal Articles

Observation of direct electron heating by the fast waves in the low-hybrid range of frequencies in the JFT-2M tokamak

Yamamoto, Takumi; Uesugi, Yoshihiko; Kawashima, Hisato; Hoshino, Katsumichi; ; Kasai, Satoshi; Kawakami, Tomohide; Kondoh, Takashi; Maeda, Hikosuke; Matsuda, Toshiaki; et al.

Physical Review Letters, 63(11), p.1148 - 1151, 1989/09

 Times Cited Count:18 Percentile:75.26(Physics, Multidisciplinary)

no abstracts in English

Journal Articles

H mode observed in the JFT-2M tokamak with edge heating by electron cyclotron waves

Hoshino, Katsumichi; Yamamoto, Takumi; Kawashima, Hisato; Suzuki, Norio; Uesugi, Yoshihiko; Mori, Masahiro; ; Kasai, Satoshi; Kawakami, Tomohide; Matsuda, Toshiaki; et al.

Physical Review Letters, 63(7), p.770 - 773, 1989/08

 Times Cited Count:24 Percentile:79.75(Physics, Multidisciplinary)

no abstracts in English

JAEA Reports

Observation of H-mode by edge heating solely by electron cyclotron heating in a divertor configuration of JFT-2M tokamak

Hoshino, Katsumichi; Yamamoto, Takumi; Kawashima, Hisato; Suzuki, Norio; Uesugi, Yoshihiko; ; Kasai, Satoshi; Kawakami, Tomohide; Matsuda, Toshiaki; Miura, Yukitoshi; et al.

JAERI-M 89-038, 7 Pages, 1989/03

JAERI-M-89-038.pdf:0.29MB

no abstracts in English

JAEA Reports

Characteristics of edge localized mode in JFT-2M H-mode

Matsumoto, Hiroshi; R.J.Goldston*; ; Hoshino, Katsumichi; Kawashima, Hisato; Kawakami, Tomohide; Maeda, Hikosuke; Matoba, Toru; Matsuda, Toshiaki; Miura, Yukitoshi; et al.

JAERI-M 89-020, 26 Pages, 1989/03

JAERI-M-89-020.pdf:1.0MB

no abstracts in English

Journal Articles

Pump limiter experiment on JFT-2M tokamak

Sengoku, Seio; ; Hoshino, Katsumichi; Kasai, Satoshi; Kawakami, Tomohide; Kawashima, Hisato; Kondo, Takashi*; Maeda, Hikosuke; Matsuda, Toshiaki; Matsumoto, Hiroshi; et al.

Journal of Nuclear Materials, 162-164, p.667 - 673, 1989/00

 Times Cited Count:4 Percentile:48.35(Materials Science, Multidisciplinary)

no abstracts in English

Journal Articles

H-mode by edge ECH in JFT-2M

Hoshino, Katsumichi; Yamamoto, Takumi; Kawashima, Hisato; Tamai, Hiroshi; Ogawa, Toshihide; Odajima, Kazuo; Suzuki, Norio; Uesugi, Yoshihiko; Mori, Masahiro; ; et al.

Radio-Frequency Power in Plasmas, 4 Pages, 1989/00

no abstracts in English

Journal Articles

A New mode of improved confinement in discharges with stationary density in JEF-2M

Mori, Masahiro; Suzuki, Norio; Uesugi, Yoshihiko; Ogawa, Toshihide; Ogawa, Hiroaki; Otsuka, Hideo; Odajima, Kazuo; Kasai, Satoshi; Kawakami, Tomohide; Kawashima, Hisato; et al.

Nuclear Fusion, 28(10), p.1892 - 1897, 1988/10

 Times Cited Count:23 Percentile:72.29(Physics, Fluids & Plasmas)

no abstracts in English

Journal Articles

Particle accumulation at the edge observed in n$$_{e}$$ and T$$_{e}$$ profiles of H-mode JFT-2M plasma

Yamauchi, Toshihiko; Odajima, Kazuo; Uesugi, Yoshihiko; ; D.Dimock*; Kawashima, Hisato; Kasai, Satoshi; Kawakami, Tomohide; Maeda, Hikosuke; Matsuda, Toshiaki; et al.

Physics Letters A, 131(4-5), p.301 - 309, 1988/08

 Times Cited Count:2 Percentile:34.11(Physics, Multidisciplinary)

no abstracts in English

31 (Records 1-20 displayed on this page)