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JAEA Reports

Multi-scale analysis of deformation behavior at SCC crack tip (Contract research)

Kaji, Yoshiyuki; Miwa, Yukio; Tsukada, Takashi; Hayakawa, Masao*; Nagashima, Nobuo*; Matsuoka, Saburo*

JAERI-Research 2005-029, 156 Pages, 2005/09

JAERI-Research-2005-029.pdf:57.24MB

This report describes a result of the research conducted under contract with JNES that was concerned with a multi-scale analysis of plastic deformation behavior at the crack tip of SCC. The research was carried out to evaluate the validity of the SCC growth data acquired in the IGSCC project based on a mechanistic understanding of SCC. For the purpose, in this research, analyses of the plastic deformation behavior and microstructure around the crack tip were performed in a nano-order scale. The hardness measured in nano, meso and macro scales was employed as a common index of the strength, and the essential data necessary to understand the SCC propagation behavior were acquired and analyzed that are mainly a size of plastic deformation region and a microstructural information in the region, e.g. data of crystallografy, microscopic deformation and dislocations at the inside of grains and grain boundaries.

Journal Articles

Radiation-induced swelling and softening in magnesium aluminate spinel irradiated with high-flux Cu$$^{-}$$ ions

Lee, C. G.; Omura, Takahito*; Takeda, Yoshihiko*; Matsuoka, Saburo*; Kishimoto, Naoki*

Journal of Nuclear Materials, 326(2-3), p.211 - 216, 2004/03

 Times Cited Count:4 Percentile:29.18(Materials Science, Multidisciplinary)

Magnesium aluminate spinel of single crystal was irradiated with 60 keV Cu$$^{-}$$ at a dose rate up to 100 $$mu$$A/cm$$^{2}$$, to a total dose of 3$$times$$10$$^{16}$$ ions/cm$$^{2}$$, in order to study changes in hardness and step-height swelling by high-flux implantation. Hardness determined by nano-indentation measurements steeply decreased with implantation. There is a strong negative correlation between dose-rate dependences of the hardness and the step-height swelling: the former decreases as the latter increases. The Rutherford Backscattering Spectrometry (RBS)/channeling measurements showed that the spinel is not completely amorphized over the dose-rate range in this study, and the radiation-induced softening observed is not due to amorphization. Results of optical absorbance suggested that radiation-induced point defects and their clusters on the anion sublattices of the spinel played an important role in the radiation-induced swelling under high-flux ion implantation.

Journal Articles

Development of acceleration power supplies of a neutral beam injection system using GTO switches with transient-voltage regulation capability

Matsuoka, Mamoru; *; Matsuda, Shinzaburo; *; Mizuno, Makoto; *; Watanabe, Kazuhiro; *

Denki Gakkai Rombunshi, B, 112(11), p.1035 - 1044, 1992/00

no abstracts in English

Journal Articles

Beam-energy control during a beam pulse in a neutral beam injection system

Matsuoka, Mamoru; Akiba, Masato; *; Horiike, Hiroshi; Kuriyama, Masaaki; Matsuda, Shinzaburo; Ohara, Yoshihiro

Review of Scientific Instruments, 61(10), p.2614 - 2622, 1990/10

 Times Cited Count:1 Percentile:34.83(Instruments & Instrumentation)

no abstracts in English

Journal Articles

Beam stops of JT-60 neutral beam injector

Kuriyama, Masaaki; Araki, Masanori; Horiike, Hiroshi; Matsuda, Shinzaburo; Matsuoka, Mamoru; Ohara, Yoshihiro; Okumura, Yoshikazu; Shibanuma, Kiyoshi; Shirakata, Hirofumi; Tanaka, Shigeru

Fusion Engineering and Design, 9, p.237 - 243, 1989/00

no abstracts in English

Journal Articles

Ions in carbon dioxide at atmospheric pressure, 4; Ionic reactions in CO$$_{2}$$-CO-O$$_{2}$$ mixture

Ikezoe, Yasumasa; Shimizu, Saburo; Onuki, Kaoru; *; *; Tagawa, S.*; Tabata, Yoneho*

Journal of Physical Chemistry, 93(4), p.1193 - 1197, 1989/00

 Times Cited Count:3 Percentile:19.36(Chemistry, Physical)

no abstracts in English

JAEA Reports

Low energy high power injection in JT-60 NBI

Mizuno, Makoto; Dairaku, Masayuki; Horiike, Hiroshi; Kitamura, Shigeru; Komata, Masao; Kuriyama, Masaaki; Matsuda, Shinzaburo; Matsuoka, Mamoru; Oga, Tokumichi; Ohara, Yoshihiro; et al.

JAERI-M 88-088, 14 Pages, 1988/05

JAERI-M-88-088.pdf:0.44MB

no abstracts in English

JAEA Reports

The Design research and development of JT-60 neutral beam injector

Kuriyama, Masaaki; Akiba, Masato; ; Araki, Masanori; Dairaku, Masayuki; ; Horiike, Hiroshi; Ito, Takao; Inoue, Takashi; Kawai, Mikito; et al.

JAERI-M 87-169, 182 Pages, 1987/10

JAERI-M-87-169.pdf:5.53MB

no abstracts in English

Journal Articles

The JT-60 neutral beam injection system

Matsuda, Shinzaburo; Akiba, Masato; Araki, Masanori; Dairaku, Masayuki; ; Horiike, Hiroshi; Ito, Takao; *; Kawai, Mikito; Komata, Masao; et al.

Fusion Engineering and Design, 5, p.85 - 100, 1987/00

 Times Cited Count:23 Percentile:87.78(Nuclear Science & Technology)

no abstracts in English

JAEA Reports

Development of Helium Beam Injector for JT-60 Active Beam Diagnostic System

; ; ; Matsuda, Shinzaburo; Ohara, Yoshihiro; ; ; ; ; ; et al.

JAERI-M 86-114, 71 Pages, 1986/08

JAERI-M-86-114.pdf:2.25MB

no abstracts in English

JAEA Reports

Composition of the Power Supply System for the JT-60 Active Beam Source Suppression of Surge Current

; ; *; ; Matsuda, Shinzaburo; ; ;

JAERI-M 86-104, 53 Pages, 1986/07

JAERI-M-86-104.pdf:2.11MB

no abstracts in English

Journal Articles

Extraction electrode for 100kV 40A 10s ion source

; ; Araki, Masanori; Matsuda, Shinzaburo; ; Ohara, Yoshihiro; ; ;

Fusion Technology, 7, p.171 - 179, 1985/00

no abstracts in English

Journal Articles

Performance of the prototype JT-60 injector unit in the presence of a simulated stray magnetic field

; ; ; ; ; ; Matsuda, Shinzaburo; ; ; Ohara, Yoshihiro; et al.

Fusion Technology, 7(3), p.391 - 398, 1985/00

no abstracts in English

Journal Articles

Ions in carbon dioxide at an atmospheric pressure, II; Effect of CO and O$$_{2}$$ addition

Ikezoe, Yasumasa; ; Shimizu, Saburo; Nakajima, Hayato; ; *

Radiation Physics and Chemistry, 26(4), p.445 - 449, 1985/00

no abstracts in English

JAEA Reports

100kV,80A,10s Power Supply for a Neutral Beam Injector Using a Series of Gate Turn Off Thyristors as a Regulator/Switch Valve

; ; ; ; Matsuda, Shinzaburo; ; *; Ohara, Yoshihiro;

JAERI-M 84-112, 20 Pages, 1984/06

JAERI-M-84-112.pdf:1.17MB

no abstracts in English

Journal Articles

Ions in carbon dioxide at an atmospheric pressure, 3; Formation of($$^{1}$$$$^{8}$$O$$_{2}$$(CO)$$_{2}$$)$$^{+}$$(CO$$_{2}$$)$$_{n}$$ in a CO$$_{2}$$-CO-$$^{1}$$$$^{8}$$O$$_{2}$$ mixture

Ikezoe, Yasumasa; ; Shimizu, Saburo; ; *; *

J.Phys.Chem., 88(24), p.5945 - 5948, 1984/00

no abstracts in English

Journal Articles

100kV test of the prototype neutral beam injector for JT-60

; ; Araki, Masanori; ; ; ; ; ; Matsuda, Shinzaburo; ; et al.

Review of Scientific Instruments, 55(3), p.332 - 337, 1984/00

 Times Cited Count:19 Percentile:86.94(Instruments & Instrumentation)

no abstracts in English

JAEA Reports

Structural Design of the Neutralizer for JT-60 NBI

; ; ; ; Matsuda, Shinzaburo; *; Ohara, Yoshihiro;

JAERI-M 83-069, 30 Pages, 1983/05

JAERI-M-83-069.pdf:0.91MB

no abstracts in English

Journal Articles

Geometrical efficiency of the prototype neutral beam injector unit for JT-60

Ohara, Yoshihiro; ; Araki, Masanori; ; ; Matsuda, Shinzaburo; ; ;

Review of Scientific Instruments, 54(8), p.921 - 927, 1983/00

 Times Cited Count:6 Percentile:67.94(Instruments & Instrumentation)

no abstracts in English

JAEA Reports

Magnetic Shields for JT-60 Neutral Beam Injectors -Design and Test Results-

; ; ; ; Matsuda, Shinzaburo; ; Ohara, Yoshihiro;

JAERI-M 82-140, 42 Pages, 1982/10

JAERI-M-82-140.pdf:1.22MB

no abstracts in English

29 (Records 1-20 displayed on this page)