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Journal Articles

Engineering and maintenance studies of the ITER diagnostic upper port plug

Sato, Kazuyoshi; Omori, Junji; Kondoh, Takashi; Hatae, Takaki; Kajita, Shin*; Ishikawa, Masao; Neyatani, Yuzuru; Ebisawa, Katsuyuki*; Kusama, Yoshinori

Fusion Engineering and Design, 84(7-11), p.1713 - 1715, 2009/06

 Times Cited Count:1 Percentile:10.22(Nuclear Science & Technology)

Engineering analyses have been performed for the representative diagnostic upper port plug of ITER. Maintenance and integration design have been also carried out for the diagnostic components to be installed in the upper port plug. From the electromagnetic and structural analyses, it has come up an important problem to suppress the displacement of the upper port plug rather than to reduce the produced stress. Reducing the EM force will help to decrease the severity of potential displacement. Maximum displacement of the port plug decreases with increasing in the number of slits in a manner that the displacement would seem to be less than the design tolerance. A proposed low body roller and inner frame may enhance maintenance and integration. These studies and designs have established the design basis for the diagnostic upper port plug.

Journal Articles

Development of ITER diagnostic upper port plug

Sato, Kazuyoshi; Omori, Junji; Ebisawa, Katsuyuki*; Kusama, Yoshinori; Neyatani, Yuzuru

Plasma and Fusion Research (Internet), 2, p.S1088_1 - S1088_4, 2007/11

A part of diagnostic device in vacuum vessel is planned to install in the port plug to make sure the line of sight of diagnostics. Only basic concept is shown for the port plug since design of diagnostic devices has not been substantiated yet. The integration design of the port plug has been performed and the structure concept for electro-magnetic and neutron load has been investigated as for the No.11 upper port plug to confirm reliability of the proposed design. Three diagnostics will be installed in the No.11 upper port plug, the edge Thomson scattering system, the visible-IR TV divertor viewing system and the neutron activation system. To integrate theses diagnostic systems in the port plug, it was designed the arrangement of the labyrinth of optical path, the driving mechanism and cooling systems for shutters and mirrors, the maintenance space. The part just behind the blanket shield module (BSM) was changed to secure a space for maintenance and for associated diagnostic first mirror and shutter, whereas this place is assigned for neutron shielding in the present design. The BSM support, which is main component to apply the electro-magnetic load, was arranged with optical path inside BSM.

Journal Articles

Engineering design of the ITER invessel neutron monitor using micro-fission chambers

Nishitani, Takeo; Yamauchi, Michinori; Izumi, Mikio*; Hayakawa, Atsuro*; Ebisawa, Katsuyuki*; Kondoh, Takashi; Kusama, Yoshinori

Fusion Engineering and Design, 82(5-14), p.1192 - 1197, 2007/10

 Times Cited Count:5 Percentile:37.19(Nuclear Science & Technology)

no abstracts in English

Journal Articles

Progress in development of edge Thomson scattering system for ITER

Hatae, Takaki; Nakatsuka, Masahiro*; Yoshida, Hidetsugu*; Ebisawa, Katsuyuki*; Kusama, Yoshinori; Sato, Kazuyoshi; Katsunuma, Atsushi*; Kubomura, Hiroyuki*; Shinobu, Katsuya*

Fusion Science and Technology, 51(2T), p.58 - 61, 2007/02

 Times Cited Count:6 Percentile:42.5(Nuclear Science & Technology)

no abstracts in English

Journal Articles

Vacuum ultraviolet divertor impurity monitor for the International Thermonuclear Experimental Reactor

Ebisawa, Katsuyuki*; Ando, Toshiro; A.E.Costley*; G.Janeschitz*; E.Martin*; Sugie, Tatsuo

Review of Scientific Instruments, 70(1), p.328 - 331, 1999/01

 Times Cited Count:2 Percentile:27.57(Instruments & Instrumentation)

no abstracts in English

Journal Articles

Neutron monitor using microfission chambers for the international thermonuclear experimental reactor

Nishitani, Takeo; L.C.Johnson*; Ebisawa, Katsuyuki*; C.Walker*; Ando, Toshiro; Kasai, Satoshi

Review of Scientific Instruments, 70(1), p.1141 - 1144, 1999/01

 Times Cited Count:15 Percentile:68.26(Instruments & Instrumentation)

no abstracts in English

Journal Articles

Divertor impurity monitor for the international thermonuclear experimental reactor

Sugie, Tatsuo; Ogawa, Hiroaki; *; *; Ebisawa, Katsuyuki*; Ando, Toshiro; *; Kasai, Satoshi; Nishitani, Takeo

Review of Scientific Instruments, 70(1), p.351 - 354, 1999/01

 Times Cited Count:10 Percentile:58.84(Instruments & Instrumentation)

no abstracts in English

JAEA Reports

Design of divertor impurity monitoring system for ITER, 2

Sugie, Tatsuo; Ogawa, Hiroaki; *; *; *; Ebisawa, Katsuyuki*; Ando, Toshiro; Kasai, Satoshi

JAERI-Tech 98-047, 195 Pages, 1998/11

JAERI-Tech-98-047.pdf:4.83MB

no abstracts in English

JAEA Reports

Design of ITER neutron monitor using micro fission chambers

Nishitani, Takeo; L.C.Johnson*; Ebisawa, Katsuyuki*; C.Walker*; Ando, Toshiro; Kasai, Satoshi

JAERI-Research 98-049, 38 Pages, 1998/08

JAERI-Research-98-049.pdf:1.71MB

no abstracts in English

Journal Articles

VUV divertor impurity monitor for ITER

Ebisawa, Katsuyuki*; Ando, Toshiro; A.Costley*; G.Janeschitz*; E.Martin*; Sugie, Tatsuo

Diagnostics for Experimental Thermonuclear Fusion Reactors,2, p.337 - 343, 1998/00

no abstracts in English

Journal Articles

Divertor impurity monitor for ITER

Sugie, Tatsuo; Ogawa, Hiroaki; *; *; Ebisawa, Katsuyuki*; Ando, Toshiro; *; Kasai, Satoshi

Proc. of Int. Workshop on Diagnostics for Experimental Fusion Reactors, p.327 - 336, 1998/00

no abstracts in English

Journal Articles

In-Vessel neutron monitor using micro fission chambers for ITER

Nishitani, Takeo; Ebisawa, Katsuyuki*; C.Walker*; *; Kasai, Satoshi; L.C.Johnson*

Proc. of Int. Workshop on Diagnostics for Experimental Fusion Reactors, p.491 - 500, 1998/00

no abstracts in English

Journal Articles

Design of radial neutron spectrometer array for the International Thermonuclear Experimental Reactor

Nishitani, Takeo; Kasai, Satoshi; Iguchi, Tetsuo*; *; Ebisawa, Katsuyuki*; *

Review of Scientific Instruments, 68(1), p.565 - 568, 1997/01

 Times Cited Count:5 Percentile:46.16(Instruments & Instrumentation)

no abstracts in English

Journal Articles

Design of ITER neutron yield monitor using microfission chambers

Nishitani, Takeo; Ebisawa, Katsuyuki*; Iguchi, Tetsuo*; Matoba, Toru

Fusion Engineering and Design, 34-35, p.567 - 571, 1997/00

 Times Cited Count:13 Percentile:67.93(Nuclear Science & Technology)

no abstracts in English

JAEA Reports

Design of radial neutron spectrometer for ITER

Nishitani, Takeo; Iguchi, Tetsuo*; Ebisawa, Katsuyuki*; *; Kasai, Satoshi

JAERI-Tech 96-038, 29 Pages, 1996/09

JAERI-Tech-96-038.pdf:1.17MB

no abstracts in English

Journal Articles

Development of cryogenic vacuum window for ECH system

Yokokura, Kenji; Kasugai, Atsushi; Sakamoto, Keishi; Takahashi, Koji; Tsuneoka, Masaki; Yamamoto, Takumi; Imai, Tsuyoshi; Nagashima, Takashi; Saito, Yasushi*; *; et al.

Purazuma, Kaku Yugo Gakkai-Shi, 71(8), p.760 - 771, 1995/08

no abstracts in English

Journal Articles

High power tests of the cryogenic window for millimeter wave

Kasugai, Atsushi; Yokokura, Kenji; Sakamoto, Keishi; Tsuneoka, Masaki; Yamamoto, Takumi; Imai, Tsuyoshi; Saito, Yasushi*; *; *; Ebisawa, Katsuyuki*

Proceedings of the 19th International Conference on Infrared and Millimeter Waves, 0, p.295 - 296, 1994/00

no abstracts in English

JAEA Reports

Japanese contributions to IAEA INTOR Workshop, phase two A, part 3, chapter VIII; Blanket and first wall

*; Iida, Hiromasa; *; Adachi, Junichi*; ; Ebisawa, Katsuyuki*; *; Fukaya, Kiyoshi; *; *; et al.

JAERI-M 87-219, 336 Pages, 1988/01

JAERI-M-87-219.pdf:8.39MB

no abstracts in English

JAEA Reports

Hydrogen Re-emission Data Analysis in Austenitic Stainless Steel

*; Ozawa, K.; *; *

JAERI-M 85-099, 80 Pages, 1985/07

JAERI-M-85-099.pdf:1.11MB

no abstracts in English

JAEA Reports

Japanese Contributions to IAEA INTOR Workshop,PhaseIIA,Part 2 Chapter IX:Engineering

; Seki, Masahiro; *; *; *; *; *; *; *; *; et al.

JAERI-M 85-081, 231 Pages, 1985/07

JAERI-M-85-081.pdf:3.67MB

no abstracts in English

30 (Records 1-20 displayed on this page)