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Journal Articles

Evidence for momentum-dependent heavy fermionic electronic structures; Soft X-ray ARPES for the superconductor CeNi$$_{2}$$Ge$$_{2}$$ in the normal state

Nakatani, Yasuhiro*; Aratani, Hidekazu*; Fujiwara, Hidenori*; Mori, Takeo*; Tsuruta, Atsushi*; Tachibana, Shoichi*; Yamaguchi, Takashi*; Kiss, Takayuki*; Yamasaki, Atsushi*; Yasui, Akira*; et al.

Physical Review B, 97(11), p.115160_1 - 115160_7, 2018/03

AA2018-0003.pdf:1.65MB

 Times Cited Count:5 Percentile:23.34(Materials Science, Multidisciplinary)

Journal Articles

Circular dichroism in resonant angle-resolved photoemission spectra of LaNi$$_{2}$$Ge$$_{2}$$

Nakatani, Yasuhiro*; Fujiwara, Hidenori*; Aratani, Hidekazu*; Mori, Takeo*; Tachibana, Shoichi*; Yamaguchi, Takashi*; Kiss, Takayuki*; Yamasaki, Atsushi*; Yasui, Akira*; Yamagami, Hiroshi*; et al.

Journal of Electron Spectroscopy and Related Phenomena, 220, p.50 - 53, 2017/01

 Times Cited Count:2 Percentile:15.75(Spectroscopy)

We report the soft X-ray angle-resolved photoemission study for LaNi$$_{2}$$Ge$$_{2}$$ to reveal the electronic structures derived from non-4$$f$$ bands of the heavy fermion compound CeNi$$_{2}$$Ge$$_{2}$$. The photoemission spectra recorded at the La M$$_{4,5}$$ absorption edges clearly show the enhancement of the La 5$$d$$ components in the valence band spectra. The circular dichroism of photoemission spectra reveals the band-dependent dichroic response due to the orbital symmetry.

JAEA Reports

Development of geological structure modeling technology based on regional tectonic process (Joint research)

Tagami, Masahiko*; Yamada, Yasuhiro*; Yamashita, Yoshihiko*; Miyakawa, Ayumu*; Matsuoka, Toshifumi*; Xue, Z.*; Tsuji, Takeshi*; Tsuruta, Tadahiko; Matsuoka, Toshiyuki; Amano, Kenji; et al.

JAEA-Research 2012-036, 110 Pages, 2013/02

JAEA-Research-2012-036.pdf:44.93MB

Northeast strike faults developed in and around the Mizunami Underground Research Laboratory (MIU) control groundwater flow. These faults were possibly formed as a part of pull-apart structure by the right lateral movement of the Tsukiyoshi fault distributed in the north of MIU site. But the formational mechanism of these faults is still uncertain. In this joint research, the analog experiment and the numerical simulation were used to restore the geological structures around MIU site. The paleo-stress analysis were exposed an ancient deformation mechanism, and the formation timing was presumed in the regional tectonics. The results are adopted for the design of the analog experiment and the numerical simulation. The results of obtained analog experiment and numerical simulation are verified three-dimensionally, and then compared to the current geological structure model. Then the geological structure in the uninvestigated area is estimated.

Journal Articles

Geological investigations for geological model of deep underground geoenvironment at the Mizunami Underground Research Laboratory (MIU)

Tsuruta, Tadahiko; Tagami, Masahiko; Amano, Kenji; Matsuoka, Toshiyuki; Kurihara, Arata; Yamada, Yasuhiro*; Koike, Katsuaki*

Chishitsugaku Zasshi, 119(2), p.59 - 74, 2013/02

Japan Atomic Energy Agency (JAEA) is developing a geoscientific research project, Mizunami Underground Research Laboratory (MIU) project, in order to establish scientific and technological basis for geological disposal of HLW. A series of geological mapping, reflection seismic survey, borehole investigation and geological investigations around research galleries are carried out to identify the distribution and the heterogeneity of fractures and faults that are potential major flow-pass of groundwater as field investigations. This paper describes geological investigations in the MIU project, focused on the evaluation of their effectiveness in order to understand the deep underground geological environment.

Journal Articles

Consideration of the tectonic and the geological structure evolution; Application to analogue model experiment and numerical simulation

Tagami, Masahiko; Tsuruta, Tadahiko; Matsuoka, Toshiyuki; Yamada, Yasuhiro*; Matsuoka, Toshifumi*; Yamashita, Yoshihiko*; Miyakawa, Ayumu*

JAEA-Review 2010-069, p.125 - 126, 2011/02

no abstracts in English

JAEA Reports

Mizunami Underground Research Laboratory Project, Annual report for fiscal year 2006

Nishio, Kazuhisa; Matsuoka, Toshiyuki; Mikake, Shinichiro; Tsuruta, Tadahiko; Amano, Kenji; Oyama, Takuya; Takeuchi, Ryuji; Saegusa, Hiromitsu; Hama, Katsuhiro; Yoshida, Haruo*; et al.

JAEA-Review 2009-001, 110 Pages, 2009/03

JAEA-Review-2009-001.pdf:49.84MB

Japan Atomic Energy Agency (JAEA) at Tono Geoscience Center (TGC) is developing a geoscientific research project named Mizunami Underground Research Laboratory (MIU) project in crystalline rock environment in order to establish scientific and technological basis for geological disposal of HLW. Geoscientific research at MIU is planned to be carried out in three phases over a period of 20 years; Surface-based Investigation Phase (Phase 1), Construction Phase (Phase 2) and Operation Phase (Phase 3). Currently, the project is under the Construction Phase. This document presents the following results of the research and development performed in 2006 fiscal year, as a part of the Construction Phase based on the MIU Master Plan updated in 2002, (1) Investigation at the MIU Construction Site, (2) Construction at the MIU Construction Site, (3) Research Collaboration.

JAEA Reports

Mizunami Underground Research Laboratory Project, Annual report for fiscal year 2005

Nishio, Kazuhisa; Matsuoka, Toshiyuki; Mikake, Shinichiro; Tsuruta, Tadahiko; Amano, Kenji; Oyama, Takuya; Takeuchi, Ryuji; Saegusa, Hiromitsu; Hama, Katsuhiro; Yoshida, Haruo*; et al.

JAEA-Review 2008-073, 99 Pages, 2009/03

JAEA-Review-2008-073-1.pdf:37.33MB
JAEA-Review-2008-073-2.pdf:37.16MB

Japan Atomic Energy Agency (JAEA) at Tono Geoscience Center (TGC) is developing a geoscientific research project named Mizunami Underground Research Laboratory (MIU) project in crystalline rock environment in order to establish scientific and technological basis for geological disposal of HLW. Geoscientific research at MIU is planned to be carried out in three phases over a period of 20 years; Surface-based Investigation Phase (Phase 1), Construction Phase (Phase 2) and Operation Phase (Phase 3). Currently, the project is under the Construction Phase. This document presents the following results of the research and development performed in 2005 fiscal year, as a part of the Construction Phase based on the MIU Master Plan updated in 2002, (1) Investigation at the MIU Construction Site, (2) Construction at the MIU Construction Site, (3) Research Collaboration.

JAEA Reports

Mizunami Underground Research Laboratory Project Plan for fiscal year 2008

Nishio, Kazuhisa; Oyama, Takuya; Mikake, Shinichiro; Mizuno, Takashi; Saegusa, Hiromitsu; Takeuchi, Ryuji; Amano, Kenji; Tsuruta, Tadahiko; Hama, Katsuhiro; Seno, Yasuhiro; et al.

JAEA-Review 2008-072, 28 Pages, 2009/02

JAEA-Review-2008-072.pdf:11.8MB

Japan Atomic Energy Agency (JAEA) at Tono Geoscience Center (TGC) is developing a geoscientific research project named the Mizunami Underground Research Laboratory (MIU) project in crystalline rock environment in order to establish scientific and technological basis for geological disposal of HLW. Geoscientific research at the MIU project is planned to be carried out in three phases over a period of 20 years; Surface-based Investigation Phase (Phase 1), Construction Phase (Phase 2) and Operation Phase (Phase 3). Currently, the project is under the Construction Phase. This document presents the following 2008 fiscal year plan based on the MIU Master Plan updated in 2002, (1) Investigation Plan, (2) Construction Plan, (3) Research Collaboration Plan, etc.

JAEA Reports

Final report on the surface-based investigation (phase I) at the Mizunami Underground Laboratory project

Saegusa, Hiromitsu; Seno, Yasuhiro; Nakama, Shigeo; Tsuruta, Tadahiko; Iwatsuki, Teruki; Amano, Kenji; Takeuchi, Ryuji; Matsuoka, Toshiyuki; Onoe, Hironori; Mizuno, Takashi; et al.

JAEA-Research 2007-043, 337 Pages, 2007/03

JAEA-Research-2007-043.pdf:28.14MB

The Mizunami Underground Laboratory (MIU) Project is a comprehensive research project investigating the deep underground environment within crystalline rock being conducted by Japan Atomic Energy Agency at Mizunami City in Gifu Prefecture, central Japan. This report summarizes the results of the Surface-based Investigation Phase, identifies future issues and provides direction for research to be conducted during Construction Phase and Operation Phase. The results compiled in this report will be utilized for the technical knowledge base on geological disposal of HLW, and can be used to enhance the technical basis for waste disposal in general and for development of government regulations.

Journal Articles

Progress of environmental sampling program at Japan Atomic Energy Research Institute

Nishimura, Hideo; Magara, Masaaki; Hanzawa, Yukiko; Esaka, Fumitaka; Takahashi, Tsukasa; Gunji, Katsubumi; Miyamoto, Yutaka; Yasuda, Kenichiro; Tsuruta, Yasuhiro; Tsuda, Shinji; et al.

Heisei 11-Nendo Hosho Sochi Semina Koenroku Tekisuto, p.95 - 107, 2000/01

no abstracts in English

Journal Articles

Present status of JAERI's project on the development of environmental sample analysis techniques

Usuda, Shigekazu; Adachi, Takeo; Watanabe, Kazuo; Magara, Masaaki; Hanzawa, Yukiko; Esaka, Fumitaka; Miyamoto, Yutaka; Yasuda, Kenichiro; Gunji, Hideho; Tsuruta, Yasuhiro; et al.

Proceedings of Seminar on Strengthening of Safeguards: Integrating the New and the Old, p.477 - 481, 2000/00

no abstracts in English

Journal Articles

Development of environmental sample analysis techniques for safeguards and its current status

Magara, Masaaki; Hanzawa, Yukiko; Esaka, Fumitaka; Miyamoto, Yutaka; Yasuda, Kenichiro; Tsuruta, Yasuhiro; Tsuda, Shinji; Watanabe, Kazuo; Usuda, Shigekazu; Nishimura, Hideo; et al.

Kaku Busshitsu Kanri Gakkai Nihon Shibu Dai-20-Kai Kinen Taikai Rombunshu, p.183 - 187, 1999/11

no abstracts in English

Oral presentation

Analysis of the tectonic history of Mizunami area, 2; Kinematics of the Tsukiyoshi Fault

Yamada, Yasuhiro*; Yamashita, Yoshihiko*; Miyakawa, Ayumu*; Tsuruta, Tadahiko; Matsuoka, Toshiyuki; Tagami, Masahiko

no journal, , 

Tsukiyoshi fault displaces Toki granite and middle Miocene Mizunami group, and it was regarded as the reverse fault from apparent displacement. However, the arrangement of the Tsukiyoshi channel and several NNW-SSE trend faults between the right step region of ENE-WSW strike Tsukiyoshi Fault. This implies that right-lateral displacement created a pull-apart basin. In order to support this working hypothesis, we have designed analogue experiment and 3-D numerical simulation, to restore a similar structure around the southern side of Tsukiyoshi fault. It succeeded in reproducing similar structures of the present geological model in analogue experiment by dextral moving the reduced 3-D block model of the present Tsukiyoshi fault plane.

Oral presentation

Development for spatial modeling of geological structure; A Case study of the Mizunami Underground Research Laboratory

Tsuruta, Tadahiko; Matsuoka, Toshiyuki; Tagami, Masahiko; Kurihara, Arata; Amano, Kenji; Yamada, Yasuhiro*; Koike, Katsuaki*

no journal, , 

no abstracts in English

Oral presentation

Overview of the surface-based investigation phase (Phase I) at the Mizunami Underground Laboratory project, 1; Concept of the phase I investigation phase

Semba, Takeshi; Saegusa, Hiromitsu; Hama, Katsuhiro; Tsuruta, Tadahiko; Amano, Kenji; Takeuchi, Ryuji; Seno, Yasuhiro; Uchida, Masahiro

no journal, , 

no abstracts in English

Oral presentation

Overview of the regional hydrogeological study

Saegusa, Hiromitsu; Iwatsuki, Teruki; Amano, Kenji; Tsuruta, Tadahiko; Takeuchi, Ryuji; Seno, Yasuhiro; Matsuoka, Toshiyuki; Mizuno, Takashi

no journal, , 

no abstracts in English

Oral presentation

Overview of the final report on the surface-based investigation (Phase I) at the Mizunami Underground Laboratory project, 1; Concept of the phase I investigation

Seno, Yasuhiro; Saegusa, Hiromitsu; Amano, Kenji; Tsuruta, Tadahiko; Takeuchi, Ryuji; Matsuoka, Toshiyuki; Mizuno, Takashi; Hama, Katsuhiro; Uchida, Masahiro; Semba, Takeshi

no journal, , 

no abstracts in English

Oral presentation

Overview of the final report on the surface-based investigation (Phase I) at the Mizunami Underground Laboratory project, 6; Techniques/methods for investigation and assessment of geological environment

Seno, Yasuhiro; Saegusa, Hiromitsu; Amano, Kenji; Tsuruta, Tadahiko; Matsuoka, Toshiyuki; Takeuchi, Ryuji; Mizuno, Takashi; Uchida, Masahiro

no journal, , 

no abstracts in English

Oral presentation

Overview of the surface-based investigation phase (Phase I) at the Mizunami Underground Laboratory project, 6; Techniques/methods for investigation and assessment of geological enviroment

Takeuchi, Ryuji; Saegusa, Hiromitsu; Tsuruta, Tadahiko; Matsuoka, Toshiyuki; Mizuno, Takashi; Seno, Yasuhiro; Uchida, Masahiro

no journal, , 

no abstracts in English

Oral presentation

Updating hydrogeology model of the Mizunami Underground Research Laboratory (MIU) using disturbance during shaft sinking, 1; Current status of construction phase investigations at the MIU

Semba, Takeshi; Uchida, Masahiro; Hama, Katsuhiro; Tsuruta, Tadahiko; Amano, Kenji; Takeuchi, Ryuji; Saegusa, Hiromitsu; Seno, Yasuhiro

no journal, , 

no abstracts in English

20 (Records 1-20 displayed on this page)
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