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Journal Articles

Study of the reduction method of the helium gas leakage from bolted gasket flanged connection for HTGRs

Hamamoto, Shimpei; Takada, Shoji

Proceedings of 2017 International Congress on Advances in Nuclear Power Plants (ICAPP 2017) (CD-ROM), 4 Pages, 2017/04

Journal Articles

A Large-scale simulation of two-phase flow around fuel rods in coolant channels of nuclear reactor cores

Takase, Kazuyuki; Yoshida, Hiroyuki; Ose, Yasuo*

Dai-23-Kai Nihon Shimyureshon Gakkai Taikai Happyo Rombunshu, p.121 - 124, 2004/06

no abstracts in English

Journal Articles

Numerical investigation of two-phase flow structure around fuel rods with spacers by large-scale simulations

Takase, Kazuyuki; Yoshida, Hiroyuki; Ose, Yasuo*; Kureta, Masatoshi; Tamai, Hidesada; Akimoto, Hajime

Proceedings of 5th International Conference on Multiphase Flow (ICMF 2004) (CD-ROM), 14 Pages, 2004/06

no abstracts in English

Journal Articles

Large-scale numerical simulation on two-phase flow behavior in a tight-lattice nuclear fuel bundle

Ose, Yasuo*; Takase, Kazuyuki; Yoshida, Hiroyuki; Kano, Takuma; Kureta, Masatoshi; Akimoto, Hajime

Dai-41-Kai Nihon Dennetsu Shimpojiumu Koen Rombunshu, 2 Pages, 2004/05

no abstracts in English

Journal Articles

The Contorol system of JFT-2M Tokamak auxiliary subsystem

Okano, Fuminori; Suzuki, Sadaaki

KEK Proceedings 2003-16 (CD-ROM), 4 Pages, 2004/02

A JFT-2M Tokamak auxiliary subsystem consists of a vacuum pumping system, a gas injection system, a leak detection system, a water cooling system, a glow discharge system, a boronization system, and a baking system. Control system of each part except for the baking system was replaced to new one, which utilizes a personal computer (PC), from FY 2000 to FY2002. The controllability of the system and the number of data, which can be recorded, was remarkably improved compared to the old system. This system has enough controllability for various operation condition of JFT-2M, and allows early finding and recovering of troubles. The general view of Tokamak auxiliary subsystem and detailed description of the function of the new control system are given in this report. It should be noted that this report describes detail of the operational procedure especially for He glow discharge system and the boron coating system, and thus, it can be used as an operation instruction.

JAEA Reports

The Control system of JFT-2M tokamak auxiliary subsystem

Okano, Fuminori; Suzuki, Sadaaki

JAERI-Tech 2003-059, 57 Pages, 2003/06

JAERI-Tech-2003-059.pdf:11.92MB

no abstracts in English

Journal Articles

Temporal evolution of temperature and density profiles of a laser compressed core

Ochi, Yoshihiro; Golovkin, I.*; Mancini, R.*; Uschmann, I.*; Sunahara, Atsushi*; Nishimura, Hiroaki*; Fujita, Kazuhisa*; Louis, S.*; Nakai, Mitsuo*; Shiraga, Hiroyuki*; et al.

Review of Scientific Instruments, 74(3), p.1683 - 1687, 2003/03

 Times Cited Count:10 Percentile:49.39(Instruments & Instrumentation)

no abstracts in English

JAEA Reports

Japanese contribution to the design of primary module of shielding blanket in ITER-FEAT

Kuroda, Toshimasa*; Hatano, Toshihisa; Miki, Nobuharu*; Hiroki, Seiji; Enoeda, Mikio; Omori, Junji*; Sato, Shinichi*; Akiba, Masato

JAERI-Tech 2002-098, 136 Pages, 2003/02

JAERI-Tech-2002-098.pdf:24.33MB

no abstracts in English

Journal Articles

Real-time readout method of an imaging plate using wavelength-shifting fibers and a streak camera

Katagiri, Masaki; Sakasai, Kaoru; Nakamura, Tatsuya; To, Kentaro; Takahashi, Hiroyuki*; Nakazawa, Masaharu*

Nuclear Instruments and Methods in Physics Research A, 461(1-3), p.207 - 209, 2001/04

 Times Cited Count:3 Percentile:28.27(Instruments & Instrumentation)

no abstracts in English

Journal Articles

Fabrication of simulated leak test apparatus for developing water leak detection method applicable to in-vessel water cooling channels in fusion machines

Hiroki, Seiji; Tanzawa, Sadamitsu; Arai, Takashi; Abe, Tetsuya; Shimizu, Katsusuke*; Nakatani, Junnosuke*; Kuribayashi, Shizuma*

Shinku, 44(3), P. 329, 2001/03

no abstracts in English

Journal Articles

Plasma behavior confined on high-Tc superconducting tube

Yamauchi, Toshihiko; Matsuzawa, Hidenori*; Mikami, Koji*; Ishikawa, Junichi*

Proceedings of International Conference on Phenomena in Ionized Gases (25th ICPIG), p.295 - 296, 2001/00

no abstracts in English

Journal Articles

Experimental verification of laser photocathode RF gun as an injector for a laser plasma accelerator

Uesaka, Mitsuru*; Kinoshita, Kenichi*; Watanabe, Takahiro*; Sugahara, Jun*; Ueda, Toru*; Yoshii, Koji*; Kobayashi, Tetsuya*; Halz, N.*; Nakajima, Kazuhisa; Sakai, Fumio*; et al.

IEEE Transactions on Plasma Science, 28(4), p.1133 - 1142, 2000/08

 Times Cited Count:14 Percentile:41.8(Physics, Fluids & Plasmas)

no abstracts in English

Journal Articles

Generation, diagnosis and application of femtosecond electron single bunch

Uesaka, Mitsuru*; Watanabe, Takahiro*; Kinoshita, Kenichi*; Sugahara, Jun*; Harano, Hideki*; Ueda, Toru*; Yoshii, Koji*; Nakajima, Kazuhisa; Sakai, Fumio*; Kotaki, Hideyuki; et al.

Nihon Genshiryoku Gakkai-Shi, 42(4), p.310 - 324, 2000/04

 Times Cited Count:0 Percentile:0.01(Nuclear Science & Technology)

no abstracts in English

JAEA Reports

A feasibility study of the particle interaction method for the flow regimes with the chemical reaction; (Report under the contract between JNC and Toshiba Corporation)

Shirakawa, Noriyuki*; *; *; *

JNC TJ9440 2000-008, 47 Pages, 2000/03

JNC-TJ9440-2000-008.pdf:1.96MB

The numerical thermohydraulic analysis of a LMFR component should involve its whole boundaly in order to evaluate the effect of chemical reaction within it. Therefore, it becomes difficult mainly due to computing time to adopt microscopic approach for the chemical reaction directly. Thus, the thermohydraulic code is required to model the chemically reactive fluid dynamics with constitutive correlations. The reaction rate denpends on the binary contact areas between components such as continuous liquids, droplets, solid particles, and bubbles. The contact areas change sharply according to the interface state between components. Since no experiments to study the jet flow with sodium-water chemical reaction have been done, the goal of this study is to obtain the knowledge of flow regimes and contact areas by analyzing the fluid dynamics of multi-pahse and reactive components mechanistically with the particle interaction method. For the first stage of the study, the applicability of this method to the nalysis of a liquid jet into the other liquid pool was investigated. Based on the literatures, we investigated the jet flow mechanisms and analyzed the experiment of a water jet into a gasoline pool. We also analyzed SWAT3/Run19 test, the jet flow in a rod bundle, to study the applicability of the method to a complicated boundary without a chemical reaction model. The calculated fluid dynamics was in good agreement with the experiment. Furthermore, we studied and formulated the paths of phase change and chemical reaction, and conceptually designed the adopting the heat-transfer-limited phase change model and the synthesizd reaction model with a water-hydrogen conversion ratio.

Journal Articles

Optical resonator matching for JAERI free electron laser

Nishimori, Nobuyuki; Minehara, Eisuke; Sugimoto, Masayoshi; Sawamura, Masaru; Nagai, Ryoji; Kikuzawa, Nobuhiro

Review of Scientific Instruments, 69(1), p.327 - 328, 1998/01

 Times Cited Count:6 Percentile:49.2(Instruments & Instrumentation)

no abstracts in English

Journal Articles

Status of the superconducting heavy-ion tandem-booster linac at JAERI

Takeuchi, Suehiro; Matsuda, Makoto

Proc. of 19th Int. Linac Conf. (LINAC98), 1, p.67 - 69, 1998/00

no abstracts in English

Journal Articles

Development of bore tools for blanket cooling pipe connection in ITER

*; Oka, Kiyoshi; Kakudate, Satoshi; Obara, Kenjiro; *; Tada, Eisuke; A.Tesini*; Shibanuma, Kiyoshi; R.Haange*

Proceedings of 17th IEEE/NPSS Symposium Fusion Engineering (SOFE'97), 2, p.921 - 924, 1998/00

no abstracts in English

Journal Articles

Status of the JAERI Tandem superconducting booster

Takeuchi, Suehiro; Matsuda, Makoto; Ishizaki, Nobuhiro; Tayama, Hidekazu; Ouchi, Isao;

Proceedings of 23rd Linear Accelerator Meeting in Japan, p.121 - 123, 1998/00

no abstracts in English

Journal Articles

Vacuum leak test technique of JT-60

Kaminaga, Atsushi; Arai, Takashi; ; *; Saido, Masahiro

Shinku, 41(10), p.846 - 850, 1998/00

no abstracts in English

JAEA Reports

Development of fiber scope for JT-60 toroidal field coil cooling pipe

Arai, Takashi; ; Shimizu, Masatsugu

JAERI-Tech 97-003, 49 Pages, 1997/02

JAERI-Tech-97-003.pdf:2.29MB

no abstracts in English

43 (Records 1-20 displayed on this page)