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Journal Articles

Development of ITER divertor

Ezato, Koichiro

Koon Gakkai-Shi, 30(5), p.248 - 255, 2004/09

no abstracts in English

Journal Articles

Thermal fatigue experiment of screw cooling tube under one-sided heating condition

Ezato, Koichiro; Suzuki, Satoshi; Sato, Kazuyoshi; Akiba, Masato

Journal of Nuclear Materials, 329-333(1), p.820 - 824, 2004/08

 Times Cited Count:5 Percentile:36.97(Materials Science, Multidisciplinary)

This paper presents thermal fatigue experiments of a cooling tube with a helical triangular fin on its inner cooled surface, namely a ${it screw tube}$. The screw thread is directly shaped in a CuCrZr heat sink bar as a cooling channel. Slits with the width of 1.5 mm are machined at the heated side of the heat sink. The thermal fatigue experiments are carried out at 20 and 30 $$rm MW/m^2$$ by using an electron beam irradiation facility in JAERI. Water leakages from fatigue cracks, which locate at the slit of the heat sink, occurred at around 4500th and 1400th cycles at 20 and 30 $$rm MW/m^2$$, respectively. These results show good agreement with lifetime predictions using Manson-Coffin's law based on finite element analyses. Fractographic observations reveal that the fatigue cracks start from the outer heated surface at the slit region of the cooling channel and propagate toward its inner surface.

Journal Articles

Preliminary experiments on the separation of perfluorocompounds by continuous circulation gas chromatography

Tanzawa, Sadamitsu; Hiroki, Seiji; Abe, Tetsuya; Futatsuki, Takashi*; Tajima, Yoshinori*

Shinku, 46(1), p.44 - 48, 2003/01

no abstracts in English

JAEA Reports

Spin-off produced by the fusion research and development

Spin-off Research Committee in Naka Establishment

JAERI-Tech 2001-030, 35 Pages, 2001/03

JAERI-Tech-2001-030.pdf:9.39MB

no abstracts in English

JAEA Reports

Proceedings of the Joint Meeting on Plasma Surface Interaction (PSI) and Plasma Facing Components (PFC); December 1, 2000, Naka Fusion Establishment, Naka-machi, Japan

NBI Heating Laboratory

JAERI-Conf 2001-001, 122 Pages, 2001/03

JAERI-Conf-2001-001.pdf:21.64MB

The joint meeting on Plasma Surface Interaction (PSI) and Plasma Facing Components (PFC) was held in Naka Fusion Establishment on December 1, 2000. This meeting has been held to enhance information exchange between PSI and PFC researchers. In the present meeting, there were 11 presentations which covered current status of PSI and PFC studies for large fusion devices such as ITER, JT-60 and LHD, and basic studies on Hydrogen isotope behavior in the fusion material. This report includes abstracts and view graphs of these presentations.

Journal Articles

Disruption erosions of various kinds of tungsten

; Dairaku, Masayuki; ; Akiba, Masato; Tanabe, Tetsuro*; Nakamura, Kazuyuki

Fusion Engineering and Design, 39-40, p.295 - 301, 1998/00

 Times Cited Count:25 Percentile:86.86(Nuclear Science & Technology)

no abstracts in English

Journal Articles

Disruption and sputtering erosions on SiC doped CFC

Nakamura, Kazuyuki; ; Dairaku, Masayuki; ; Okumura, Yoshikazu; *; Jimbo, Ryutaro*; Bandourko, V.*; Akiba, Masato

Journal of Nuclear Materials, 258-263, p.828 - 832, 1998/00

 Times Cited Count:4 Percentile:39.76(Materials Science, Multidisciplinary)

no abstracts in English

Journal Articles

Tungsten self-sputtering yield with different incidence angles and target temperature

Bandourko, V.*; Jimbo, Ryutaro*; Nakamura, Kazuyuki; Akiba, Masato

Journal of Nuclear Materials, 258-263, p.917 - 920, 1998/00

 Times Cited Count:3 Percentile:32.94(Materials Science, Multidisciplinary)

no abstracts in English

Journal Articles

Sputtering experiments on B$$_{4}$$C doped CFC under high particle flux with low energy

Nakamura, Kazuyuki; Dairaku, Masayuki; Akiba, Masato; Okumura, Yoshikazu

Journal of Nuclear Materials, 241-243, p.1142 - 1146, 1997/00

 Times Cited Count:9

no abstracts in English

Journal Articles

Present status of high Z material development

Nakamura, Kazuyuki; Akiba, Masato

Purazuma, Kaku Yugo Gakkai-Shi, 72(10), p.983 - 1030, 1996/10

no abstracts in English

Journal Articles

Erosion of newly developed CFCs and Be under disruption heat loads

Nakamura, Kazuyuki; Akiba, Masato; Araki, Masanori; Dairaku, Masayuki; Sato, Kazuyoshi; ; ; J.Linke*; R.Duwe*; H.Bolt*; et al.

Journal of Nuclear Materials, 233-237(PT.A), p.730 - 735, 1996/00

 Times Cited Count:7 Percentile:55.69(Materials Science, Multidisciplinary)

no abstracts in English

Journal Articles

Thermal tests on B$$_{4}$$C-overlaid carbon fibre reinforced composites under disruption heat load conditioned

Nakamura, Kazuyuki; Akiba, Masato; Araki, Masanori; Dairaku, Masayuki; Sato, Kazuyoshi; ; ; Ando, Toshiro; *; Saido, Masahiro; et al.

Fusion Engineering and Design, 30, p.291 - 298, 1995/00

 Times Cited Count:2 Percentile:29.19(Nuclear Science & Technology)

no abstracts in English

JAEA Reports

High heat flux experiment on B$$_{4}$$C-converted carbon based materials for plasma facing materials of JT-60U

Nakamura, Kazuyuki; *; Ando, Toshiro; Sato, Kazuyoshi; ; ; Dairaku, Masayuki; Araki, Masanori; Akiba, Masato

JAERI-M 94-046, 28 Pages, 1994/03

JAERI-M-94-046.pdf:3.08MB

no abstracts in English

Journal Articles

Feasibility tests on B$$_{4}$$C-converted carbon with various film thicknesses for JT-60U application

Nakamura, Kazuyuki; Ando, Toshiro; Akiba, Masato; Araki, Masanori; ; Sato, Kazuyoshi; ; Dairaku, Masayuki; Saido, Masahiro; *

Fusion Engineering and Design, 24, p.431 - 435, 1994/00

 Times Cited Count:0 Percentile:0.49(Nuclear Science & Technology)

no abstracts in English

Journal Articles

Thermal response experiments of SiC/C and TiC/C functionally gradient materials as plasma facing materials for fusion application

Araki, Masanori; *; S.Kim*; ; Nakamura, Kazuyuki; Akiba, Masato

Journal of Nuclear Materials, 212-215, p.1329 - 1334, 1994/00

 Times Cited Count:10 Percentile:67.24(Materials Science, Multidisciplinary)

no abstracts in English

Journal Articles

Simulation of energy deposition from runaway electrons in plasma facing components with EGS4

Kunugi, Tomoaki; Akiba, Masato; Ogawa, Masuro; *; *

KEK-PROC-92-16, p.56 - 63, 1992/12

no abstracts in English

Journal Articles

Heat transfer with nonuniform heat flux for PFC of fusion reactors

Kunugi, Tomoaki

SAND-92-0222, p.3-14 - 3-26, 1991/00

no abstracts in English

17 (Records 1-17 displayed on this page)
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