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Journal Articles

Research and development on membrane IS process for hydrogen production using solar heat

Myagmarjav, O.; Iwatsuki, Jin; Tanaka, Nobuyuki; Noguchi, Hiroki; Kamiji, Yu; Ioka, Ikuo; Kubo, Shinji; Nomura, Mikihiro*; Yamaki, Tetsuya*; Sawada, Shinichi*; et al.

International Journal of Hydrogen Energy, 44(35), p.19141 - 19152, 2019/07

 Times Cited Count:15 Percentile:60.55(Chemistry, Physical)

Journal Articles

Gamma radiation resistance of spin Seebeck devices

Yagmur, A.*; Uchida, Kenichi*; Ihara, Kazuki*; Ioka, Ikuo; Kikkawa, Takashi*; Ono, Madoka*; Endo, Junichi*; Kashiwagi, Kimiaki*; Nakashima, Tetsuya*; Kirihara, Akihiro*; et al.

Applied Physics Letters, 109(24), p.243902_1 - 243902_4, 2016/12

 Times Cited Count:2 Percentile:11.5(Physics, Applied)

Thermoelectric devices based on the spin Seebeck effect (SSE) were irradiated with gamma ($$gamma$$) rays with the total dose of around 3$$times$$10$$^{5}$$ Gy in order to investigate the $$gamma$$-radiation resistance of the devices. To demonstrate this, Pt/Ni$$_{0.2}$$Zn$$_{0.3}$$Fe$$_{2.5}$$O$$_{4}$$/Glass and Pt/Bi$$_{0.1}$$Y$$_{2.9}$$Fe$$_{5}$$O$$_{12}$$/Gd$$_{3}$$Ga$$_{5}$$O$$_{12}$$ SSE devices were used. We confirmed that the thermoelectric, magnetic, and structural properties of the SSE devices are not affected by the $$gamma$$-ray irradiation. This result demonstrates that SSE devices are applicable to thermoelectric generation even in high radiation environments.

JAEA Reports

Mizunami Underground Research Laboratory Project; Compilation of results of geological investigation at the shafts and research galleries from the depth of 300m to 500m

Kawamoto, Koji; Kuboshima, Koji; Ishibashi, Masayuki; Tsuruta, Tadahiko; Sasao, Eiji; Ikeda, Koki; Mikake, Shinichiro; Hara, Ikuo; Yamamoto, Masaru

JAEA-Data/Code 2012-025, 32 Pages, 2013/01

JAEA-Data-Code-2012-025.pdf:3.03MB
JAEA-Data-Code-2012-025-appendix.zip:126.32MB

This document presents the data of geological investigations in the shafts and research galleries from the depth of 300m to 500m of the MIU from the 2008 fiscal year to the 2011 fiscal year. In the shafts and research galleries of the MIU, although the Cretaceous Toki granite is distributed, pegmatite, aplite and lampropyre dike are distributed partially.

Journal Articles

Operation of the AVF cyclotron

Okumura, Susumu; Ishibori, Ikuo; Kurashima, Satoshi; Yoshida, Kenichi; Yuyama, Takahiro; Ishizaka, Tomohisa; Miyawaki, Nobumasa; Kashiwagi, Hirotsugu; Yuri, Yosuke; Nara, Takayuki; et al.

JAEA-Review 2012-046, JAEA Takasaki Annual Report 2011, P. 172, 2013/01

The AVF cyclotron was operated from May 9th in fiscal 2011 and all the planned experiments on April were cancelled due to scheduled blackouts originated from the Great East Japan Earthquake. The total operation time amounted to 3,038.4 hours. The extended operation from Friday evening to Saturday evening was carried out eight times in order to supply the cancellation on April. The regular yearly overhaul and maintenance were carried out.

Journal Articles

Combustion characteristics of generating hydrogen during sodium-concrete reaction

Seino, Hiroshi; Ohno, Shuji; Yamamoto, Ikuo*; Miyahara, Shinya

Proceedings of 8th Japan-Korea Symposium on Nuclear Thermal Hydraulics and Safety (NTHAS-8) (USB Flash Drive), 10 Pages, 2012/12

A hydrogen combustion experiment was conducted to simulate the sodium-concrete reaction under oxygen-existing conditions. As a result, it was found that hydrogen was burnt at the sodium pool surface because as sodium combustion heat played a role of the ignition energy, and the hydrogen combination ratio increased with the increase of the oxygen concentration in the atmosphere.

JAEA Reports

Mizunami Underground Research Laboratory Project, Compilation of results of geological investigation at the shafts and research galleries

Kawamoto, Koji; Kuboshima, Koji; Ishibashi, Masayuki; Tsuruta, Tadahiko; Sasao, Eiji; Ikeda, Koki; Mikake, Shinichiro; Hara, Ikuo; Yamamoto, Masaru

JAEA-Data/Code 2012-009, 47 Pages, 2012/07

JAEA-Data-Code-2012-009.pdf:3.7MB
JAEA-Data-Code-2012-009-appendix(DVD-ROM)-1.zip:236.07MB
JAEA-Data-Code-2012-009-appendix(DVD-ROM)-2.zip:615.87MB
JAEA-Data-Code-2012-009-appendix(DVD-ROM)-3.zip:45.88MB
JAEA-Data-Code-2012-009-appendix(DVD-ROM)-4.zip:115.54MB
JAEA-Data-Code-2012-009-appendix(DVD-ROM)-5.zip:230.55MB

This document presents the data of geological investigations in the shafts and research galleries to the depth of 300 m of the MIU from the 2004 fiscal year to the 2008 fiscal year. In the shafts and research galleries of the MIU, the Cretaceous Toki granite is unconformably overlain by the generally flat lying Miocene Mizunami Group (younging upwards from the Toki Lignite-bearing Formation to the Hongo and Akeyo Formations) with a depth of about 166 m to 168 m.

JAEA Reports

Mizunami Underground Research Laboratory Project; Compilation of results of the borehole investigation at research galleries and shaft

Ueno, Takashi; Tokuyasu, Shingo; Kawamoto, Koji; Kuboshima, Koji; Ishibashi, Masayuki; Tsuruta, Tadahiko; Sasao, Eiji; Ikeda, Koki; Mikake, Shinichiro; Hara, Ikuo; et al.

JAEA-Data/Code 2012-008, 136 Pages, 2012/07

JAEA-Data-Code-2012-008.pdf:27.39MB
JAEA-Data-Code-2012-008-appendix(DVD-ROM)-1.zip:790.9MB
JAEA-Data-Code-2012-008-appendix(DVD-ROM)-2.zip:834.48MB
JAEA-Data-Code-2012-008-appendix(DVD-ROM)-3.zip:533.98MB
JAEA-Data-Code-2012-008-appendix(DVD-ROM)-4.zip:712.56MB
JAEA-Data-Code-2012-008-appendix(DVD-ROM)-5.zip:525.5MB

This report compiles data of results from borehole investigations which has been carried out research gallery of Mizunami Underground Research Laboratory (MIU) in the fiscal year from 2005 to 2011. These data include results of core observation, geophysical logging, and so on.

Journal Articles

Operation of the AVF cyclotron

Nara, Takayuki; Ishibori, Ikuo; Kurashima, Satoshi; Yoshida, Kenichi; Yuyama, Takahiro; Ishizaka, Tomohisa; Okumura, Susumu; Miyawaki, Nobumasa; Kashiwagi, Hirotsugu; Yuri, Yosuke; et al.

JAEA-Review 2011-043, JAEA Takasaki Annual Report 2010, P. 172, 2012/01

no abstracts in English

Journal Articles

Operation of the AVF cyclotron

Nara, Takayuki; Ishibori, Ikuo; Kurashima, Satoshi; Yoshida, Kenichi; Yuyama, Takahiro; Ishizaka, Tomohisa; Okumura, Susumu; Miyawaki, Nobumasa; Kashiwagi, Hirotsugu; Yuri, Yosuke; et al.

JAEA-Review 2010-065, JAEA Takasaki Annual Report 2009, P. 180, 2011/01

no abstracts in English

Journal Articles

Operation of the AVF cyclotron

Nara, Takayuki; Ishibori, Ikuo; Kurashima, Satoshi; Yoshida, Kenichi; Yuyama, Takahiro; Ishizaka, Tomohisa; Okumura, Susumu; Miyawaki, Nobumasa; Kashiwagi, Hirotsugu; Yuri, Yosuke; et al.

JAEA-Review 2008-055, JAEA Takasaki Annual Report 2007, P. 190, 2008/11

no abstracts in English

Journal Articles

Operation of AVF cyclotron

Nara, Takayuki; Agematsu, Takashi; Ishibori, Ikuo; Kurashima, Satoshi; Yoshida, Kenichi; Yuyama, Takahiro; Ishizaka, Tomohisa; Okumura, Susumu; Miyawaki, Nobumasa; Kashiwagi, Hirotsugu; et al.

JAEA-Review 2007-060, JAEA Takasaki Annual Report 2006, P. 204, 2008/03

no abstracts in English

Journal Articles

Present status of AVF cyclotron at JAEA

Yuyama, Takahiro; Nara, Takayuki; Ishibori, Ikuo; Kurashima, Satoshi; Yoshida, Kenichi; Ishizaka, Tomohisa; Okumura, Susumu; Miyawaki, Nobumasa; Kashiwagi, Hirotsugu; Yuri, Yosuke; et al.

Proceedings of 5th Annual Meeting of Particle Accelerator Society of Japan and 33rd Linear Accelerator Meeting in Japan (CD-ROM), p.259 - 261, 2008/00

no abstracts in English

Journal Articles

Laser-arc hybrid welding for the cover plate of ITER TF coil

Shiihara, Katsunori*; Makino, Yoshinobu*; Ogawa, Tsuyoshi*; Asai, Satoru*; Kanahara, Toshio*; Senda, Ikuo*; Okuno, Kiyoshi; Koizumi, Norikiyo; Matsui, Kunihiro

Proceedings of 26th International Congress on Applications of Lasers & Electro-Optics (ICALEO 2007) (CD-ROM), p.316 - 324, 2007/10

The toroidal field coil is manufactured as one of superconducting coil systems in the ITER. For welding the cover plate of TF coil, the prevention of the thermal effect on the coil and the deformation of the whole coil are required. Moreover, the application of high efficient welding is required in consideration for the productivity. Therefore, laser-arc hybrid welding process was investigated for the application to the cover plate welding, because its process is superior in the tolerance of the joint gap and the ease of the control for the heat input. In the experiment, it was confirmed that the application of laser-arc hybrid welding with the double gas shielding for high concentration arc and the filler wire for controlling the deposit amount is effective in the joint gap up to 0.8mm. Besides, twin spot laser head with the arc was developed in order to weld the both sides of cover plate simultaneously. By the optimization of welding condition for twin spot laser-arc hybrid welding process, it was confirmed to be effective in the prevention of the gap movement during welding and the acquisition of the proper penetration without the weld defect. Finally, the effectiveness of laser-arc hybrid welding for the welding deformation and the weldability on the quality was verified by the scale model test with the actual shape.

Journal Articles

Operation of JAEA AVF cyclotron system

Nara, Takayuki; Agematsu, Takashi; Ishibori, Ikuo; Kurashima, Satoshi; Yoshida, Kenichi; Okumura, Susumu; Miyawaki, Nobumasa; Kashiwagi, Hirotsugu; Yuri, Yosuke; Yokota, Wataru; et al.

JAEA-Review 2006-042, JAEA Takasaki Annual Report 2005, P. 196, 2007/02

no abstracts in English

Journal Articles

Operation of JAERI AVF cyclotron system

Nara, Takayuki; Agematsu, Takashi; Ishibori, Ikuo; Kurashima, Satoshi; Yoshida, Kenichi; Fukuda, Mitsuhiro; Okumura, Susumu; Miyawaki, Nobumasa; Kashiwagi, Hirotsugu; Nakamura, Yoshiteru; et al.

JAEA-Review 2005-001, TIARA Annual Report 2004, P. 370, 2006/01

no abstracts in English

Journal Articles

Status report on JAERI-AVF cyclotron system

Nara, Takayuki; Agematsu, Takashi; Ishibori, Ikuo; Kurashima, Satoshi; Yoshida, Kenichi; Fukuda, Mitsuhiro; Okumura, Susumu; Miyawaki, Nobumasa; Nakamura, Yoshiteru; Akaiwa, Katsuhiro*; et al.

Proceedings of 1st Annual Meeting of Particle Accelerator Society of Japan and 29th Linear Accelerator Meeting in Japan, p.209 - 211, 2004/08

no abstracts in English

JAEA Reports

Feasibility Study on Commercialization of Fast Breeder Reactor Cycle Systems Interim Report of Phase II; Technical Study Report for Reactor Plant Systems

Konomura, Mamoru; Ogawa, Takashi; Okano, Yasushi; Yamaguchi, Hiroyuki; Murakami, Tsutomu; Takaki, Naoyuki; Nishiguchi, Youhei; Sugino, Kazuteru; Naganuma, Masayuki; Hishida, Masahiko; et al.

JNC TN9400 2004-035, 2071 Pages, 2004/06

JNC-TN9400-2004-035.pdf:76.42MB

The attractive concepts for Sodium-, lead-bismuth-, helium- and water-cooled FBRs have been created through using typical plant features and employing advanced technologies. Efforts on evaluating technological prospects of feasibility have been paid for these concepts. Also, it was comfirmed if these concepts satisfy design requierments of capability and performance presumed in the feasibilty study on commertialization of Fast Breeder Reactor Systems. As results, it was concluded that the selection of sodium-cooled reactor was most rational for practical use of FBR technologies in 2015.

JAEA Reports

Study on high-performance fuel cladding materials; Joint research report in FY 1999-2000 (Phase 1) (Joint research)

Kiuchi, Kiyoshi; Ioka, Ikuo; Tachibana, Katsumi; Suzuki, Tomio; Fukaya, Kiyoshi*; Inohara, Yasuto*; Kambara, Shozo; Kuroda, Yuji*; Miyamoto, Satoshi*; Ogura, Kazutomo*

JAERI-Research 2002-008, 63 Pages, 2002/03

JAERI-Research-2002-008.pdf:7.85MB

no abstracts in English

Journal Articles

ITER engineering design

Shimomura, Yasuo; Tsunematsu, Toshihide; Yamamoto, Shin; Maruyama, So; Mizoguchi, Tadanori*; Takahashi, Yoshikazu; Yoshida, Kiyoshi; Kitamura, Kazunori*; Ioki, Kimihiro*; Inoue, Takashi; et al.

Purazuma, Kaku Yugo Gakkai-Shi, 78(Suppl.), 224 Pages, 2002/01

no abstracts in English

JAEA Reports

Development of experimental apparatus for evaluating corrosion resistance of clasing materials applied for advanced power reactor, 1

Inohara, Yasuto*; Ioka, Ikuo; Fukaya, Kiyoshi; Tachibana, Katsumi; Suzuki, Tomio; Kiuchi, Kiyoshi; Kuroda, Yuji*; Miyamoto, Satoshi*

JAERI-Tech 2001-021, 22 Pages, 2001/03

JAERI-Tech-2001-021.pdf:3.14MB

no abstracts in English

40 (Records 1-20 displayed on this page)