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Journal Articles

Discrete fracture network modeling based on in-situ data at underground gallery, 2

Nakajima, Makoto*; Seno, Shoji*; Onoe, Hironori; Ishibashi, Masayuki; Saegusa, Hiromitsu; Sawada, Atsushi

Dai-42-Kai Gamban Rikigaku Ni Kansuru Shimpojiumu Koenshu (CD-ROM), p.107 - 112, 2014/01

Japan Atomic Energy Agency is proceeding with the Mizunami Underground Research Laboratory Project in order to establish comprehensive techniques for the investigation, analysis and assessment of the deep geological environment in fractured crystalline rock for geological disposal of high level radioactive wastes. We have carried out discrete fracture network modeling, groundwater flow and particle tracking simulation in order to understand the important factors for the solute transport characterizations. In this paper, a method for estimating hydraulic parameter of discrete fracture network model based on in-situ data at underground gallery are described.

Journal Articles

Recent progress in the energy recovery linac project in Japan

Sakanaka, Shogo*; Akemoto, Mitsuo*; Aoto, Tomohiro*; Arakawa, Dai*; Asaoka, Seiji*; Enomoto, Atsushi*; Fukuda, Shigeki*; Furukawa, Kazuro*; Furuya, Takaaki*; Haga, Kaiichi*; et al.

Proceedings of 1st International Particle Accelerator Conference (IPAC '10) (Internet), p.2338 - 2340, 2010/05

Future synchrotron light source using a 5-GeV energy recovery linac (ERL) is under proposal by our Japanese collaboration team, and we are conducting R&D efforts for that. We are developing high-brightness DC photocathode guns, two types of cryomodules for both injector and main superconducting (SC) linacs, and 1.3 GHz high CW-power RF sources. We are also constructing the Compact ERL (cERL) for demonstrating the recirculation of low-emittance, high-current beams using above-mentioned critical technologies.

Journal Articles

Electron acceleration by a nonlinear wakefield generated by ultrashort (23-fs) high-peak-power laser pulses in plasma

Kando, Masaki; Masuda, Shinichi; Zhidkov, A.*; Yamazaki, Atsushi; Kotaki, Hideyuki; Kondo, Shuji; Homma, Takayuki*; Kanazawa, Shuhei; Nakajima, Kazuhisa; Hayashi, Yukio; et al.

Physical Review E, 71(1), p.015403_1 - 015403_4, 2005/01

 Times Cited Count:33 Percentile:79.46(Physics, Fluids & Plasmas)

no abstracts in English

Journal Articles

None

Nakajima, Ichiro; Sasao, Nobuyuki; Kaneko, Hiromitsu; Takahashi, Katsuro

Bunri, Sakugen Joho Kokan Kaigi, , 

None

Oral presentation

Solute transport analysis using discrete fracture network model, 1

Nakajima, Makoto*; Atsumi, Hiroyuki*; Seno, Shoji*; Masumoto, Kazuhiko*; Kawabata, Junichi*; Kunimaru, Takanori; Onoe, Hironori; Saegusa, Hiromitsu; Hayano, Akira; Watanabe, Kunio*

no journal, , 

Solute transport conceptual models for crystalline rock environment is developed in the Mizunami Underground Research Laboratory (MIU) project conducted by Japan Atomic Energy Agency (JAEA) in order to construct scientific and technological basis for geological disposal of High-level Radioactive Waste (HLW). In this study, discrete fracture network model is developed using channel network to establish hydro-geological model and analyze factors in the solute transport behavior.

Oral presentation

Solute transport analysis using discrete fracture network model, 2

Atsumi, Hiroyuki*; Nakajima, Makoto*; Seno, Shoji*; Masumoto, Kazuhiko*; Kawabata, Junichi*; Onoe, Hironori; Kunimaru, Takanori; Sawada, Atsushi; Saegusa, Hiromitsu; Watanabe, Kunio*

no journal, , 

Solute transport conceptual models for crystalline rock environment is developed in the Mizunami Underground Research Laboratory (MIU) project conducted by Japan Atomic Energy Agency (JAEA) in order to construct scientific and technological basis for geological disposal of High-level Radioactive Waste (HLW). In this study, groundwater flow analysis and solute transport analysis are conducted to analyze factors in the solute transport behavior using hydro-geological model composed of channel network.

Oral presentation

Relationship between progress of borehole investigations and geometric data of fractures at crystalline rocks

Ishibashi, Masayuki; Sasao, Eiji; Nakajima, Makoto*; Atsumi, Hiroyuki*; Onoe, Hironori; Saegusa, Hiromitsu; Kawabata, Junichi*; Masumoto, Kazuhiko*; Seno, Shoji*; Iwano, Keita*

no journal, , 

no abstracts in English

Oral presentation

Study on characterization of mass transportation using discrete fracture network model, 2; Model development taking into account consistency among geological and hydrogeological parameters

Masumoto, Kazuhiko*; Atsumi, Hiroyuki*; Iwano, Keita*; Nakajima, Makoto*; Seno, Shoji*; Kawabata, Junichi*; Saegusa, Hiromitsu; Onoe, Hironori; Sawada, Atsushi

no journal, , 

no abstracts in English

Oral presentation

Study on characterization of mass transportation using discrete fracture network model, 3; Parameter sensitivity checking using particle tracking analysis

Iwano, Keita*; Atsumi, Hiroyuki*; Nakajima, Makoto*; Masumoto, Kazuhiko*; Seno, Shoji*; Kawabata, Junichi*; Onoe, Hironori; Saegusa, Hiromitsu; Sawada, Atsushi

no journal, , 

no abstracts in English

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