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Journal Articles

Crystal structural analysis of solid oxide fuel cells using the synchrotron X-ray and neutron diffraction method

Ito, Takanori*; Igawa, Naoki; Homma, Tetsuo*

Supuringu-8 No Kokido Hoshako O Riyoshita Gurin Enerugi Bunya Niokeru Denchi Kaihatsu, p.104 - 112, 2014/02

Functional materials consist of many elements and therefore have complex crystal structure. Synchrotron X-ray and neutron scattering facilities are powerful tools to investigate the crystal structural information of those materials. Here we make an introduction to the crystal analysis method by the synchrotron X-ray and neutron diffraction applying to the solid oxide fuel cells.

Journal Articles

In-vessel tritium

Ueda, Yoshio*; Oya, Kaoru*; Ashikawa, Naoko*; Ito, Atsushi*; Ono, Tadayoshi*; Kato, Daiji*; Kawashima, Hisato; Kawamura, Gakushi*; Kenmotsu, Takahiro*; Saito, Seiki*; et al.

Purazuma, Kaku Yugo Gakkai-Shi, 88(9), p.484 - 502, 2012/09

no abstracts in English

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

Element and orbital-specific observation of two-step magnetic transition in NpNiGa$$_5$$; X-ray magnetic circular dichroism study

Okane, Tetsuo; Okochi, Takuo*; Inami, Toshiya; Takeda, Yukiharu; Fujimori, Shinichi; Kawamura, Naomi*; Suzuki, Motohiro*; Tsutsui, Satoshi*; Yamagami, Hiroshi; Fujimori, Atsushi; et al.

Physical Review B, 80(10), p.104419_1 - 104419_7, 2009/09

 Times Cited Count:6 Percentile:31.42(Materials Science, Multidisciplinary)

Journal Articles

Resonant X-ray magnetic diffraction experiments on SmB$$_2$$C$$_2$$

Inami, Toshiya; Homma, Tetsuo*; Tsutsui, Satoshi*; Indo, Kentaro*; Onodera, Hideya*; Ishii, Kenji; Owada, Kenji; Kuzushita, Kaori*; Nakao, Hironori*; Murakami, Yoichi*

Journal of Magnetism and Magnetic Materials, 310(2, Part1), p.748 - 750, 2007/03

We investigated successive phase transitions in SmB$$_2$$C$$_2$$ at $$T_{rm N2}$$=37K and $$T_{rm N1}$$=51K by means of resonant X-ray diffraction. Strong resonant diffraction signal is observed at the 101 reflection below $$T_{rm N2}$$ at the Sm $$L_3$$ edge, whereas in the intermediate phase signals appear at incommensurate positions $${vec Q}$$=(1$$pmdelta$$, $$pmdelta$$,1) where $$delta$$=0.13. Accordingly, the successive phase transitions in SmB$$_2$$C$$_2$$ is found to be commensurate-to-incommensurate magnetic phase transitions.

Journal Articles

Development of equipment to remove cadmium from waste of scallop processing by graft adsorbent

Nakai, Hisaaki*; Temma, Tsuyoshi*; Tamada, Masao; Sawamura, Toshihiro*; Saito, Takayuki*; Homma, Tetsuo*; Sato, Yasushi*

JAEA-Review 2006-042, JAEA Takasaki Annual Report 2005, P. 47, 2007/02

Removal technology for cadmium ion (Cd$$^{2+}$$) from the mid-gut gland in the scallop processing was developed by combining the Cd$$^{2+}$$ leaching process with malic acid solution and Cd$$^{2+}$$ adsorption with iminodiacetic acid adsorbent synthesized with radiation-induced graft polymerization. Experimental equipment was assembled for removal of the Cd$$^{2+}$$ from 20-40 kg of mid-gut gland. The Cd$$^{2+}$$ in the mid-gut gland was reduced from 25 mg/kg to 1 mg/kg after 24 h treatment.

Journal Articles

Soft X-ray absorption magnetic circular dichroism study of ferromagnetic superconductor UGe$$_2$$

Okane, Tetsuo; Okamoto, Jun*; Mamiya, Kazutoshi*; Fujimori, Shinichi; Takeda, Yukiharu; Saito, Yuji; Muramatsu, Yasuji*; Fujimori, Atsushi*; Haga, Yoshinori; Yamamoto, Etsuji; et al.

Journal of the Physical Society of Japan, 75(2), p.024704_1 - 024704_5, 2006/02

 Times Cited Count:10 Percentile:55.59(Physics, Multidisciplinary)

no abstracts in English

Journal Articles

$$^{238}$$U M$"o$ssbauer study on the 5f-quadrupoles in uranium-based intermetallics

Tsutsui, Satoshi*; Nakada, Masami; Nasu, Saburo*; Homma, Tetsuo*; Tokiwa, Yoshifumi; Aoki, Dai*; Wisniewski, P.*; Haga, Yoshinori; Onuki, Yoshichika

Hyperfine Interactions, 141/142(1-4), p.237 - 242, 2002/06

 Times Cited Count:1 Percentile:8.48(Physics, Atomic, Molecular & Chemical)

We have determined the distribution of the 5f-quadrupoles and detected the 5f-quadrupole order in the uranium intermetallics, uranium dipnictides and UPd$$_3$$, with $$^{238}$$ Mo"ssbauer spectroscopy. We have declared that the distribution of the 5f-quadrupoles depends on the magnetic sequence in uranium dipnictides. The distribution of the 5f-quadrupole is spherical in UBi$$_2$$, while those are oblate within c-plane in UP$$_2$$, UAs$$_2$$ and USb$$_2$$. We have observed the sudden drop of the recoil-free fraction above the transition temperature of the quadrupole order in UPd$$_3$$. The present result suggests the change of the phonon states due to the quadrupole order in this compound.

Journal Articles

$$^{238}$$U M$"o$ssbauer spectroscopic study of UX$$_{2}$$(X=Ga, P, As, Sb)

Tsutsui, Satoshi; Nakada, Masami; Nasu, Saburo*; Haga, Yoshinori; Homma, Tetsuo; Yamamoto, Etsuji; Tokiwa, Yoshifumi; Aoki, Dai*; Wi$'s$niewski, P.*; Onuki, Yoshichika

Journal of the Physical Society of Japan, Vol.70, Supplement A, p.34 - 36, 2001/05

no abstracts in English

Journal Articles

$$^{238}$$U M$"o$ssbauer study on the magnetic properties of uranium-based heavy fermion superconductors

Tsutsui, Satoshi; Nakada, Masami; Nasu, Saburo*; Haga, Yoshinori; Homma, Tetsuo; Yamamoto, Etsuji; Okuni, Hitoshi*; Onuki, Yoshichika

Hyperfine Interactions, 126(1-4), p.335 - 340, 2000/07

 Times Cited Count:6 Percentile:38.76(Physics, Atomic, Molecular & Chemical)

no abstracts in English

Journal Articles

De Haas-van Alphen effect in a heavy fermion superconductor UPd$$_{2}$$Al$$_{3}$$

Haga, Yoshinori; Inada, Yoshihiko*; Sakurai, Kenji*; Tokiwa, Yoshifumi; Yamamoto, Etsuji; Homma, Tetsuo*; Onuki, Yoshichika*

Physica B; Condensed Matter, 284-288, p.1291 - 1292, 2000/07

 Times Cited Count:0 Percentile:0(Physics, Condensed Matter)

no abstracts in English

Journal Articles

The Basal-plane anisotropy in the paramagnetic state in UPd$$_{2}$$Al$$_{3}$$

Haga, Yoshinori; Yamamoto, Etsuji; Homma, Tetsuo*; Onuki, Yoshichika*

Physica B; Condensed Matter, 284-288, p.1289 - 1290, 2000/07

 Times Cited Count:0 Percentile:0(Physics, Condensed Matter)

no abstracts in English

Journal Articles

$$^{238}$$U M$"o$ssbauer spectrosopic study of UPd$$_{2}$$Al$$_{3}$$ and URu$$_{2}$$Si$$_{2}$$

Tsutsui, Satoshi; Nakada, Masami; Nasu, Saburo*; Haga, Yoshinori; Homma, Tetsuo; Yamamoto, Etsuji; Okuni, Hitoshi*; Onuki, Yoshichika

Physica B; Condensed Matter, 281-282, p.242 - 243, 2000/06

 Times Cited Count:3 Percentile:22.75(Physics, Condensed Matter)

no abstracts in English

Journal Articles

Neutron scattering studies on heavy fermion superconductors

Metoki, Naoto; Koike, Yoshihiro; Haga, Yoshinori; Yamamoto, Etsuji; Homma, Tetsuo; Onuki, Yoshichika; Kimura, Noriaki*; Maezawa, Kunio*

Physica B; Condensed Matter, 281-282, p.987 - 988, 2000/06

 Times Cited Count:1 Percentile:8.92(Physics, Condensed Matter)

no abstracts in English

Journal Articles

Magnetic, elastic, transport and fermi surface properties of a ferromagnetic compound UGa$$_{2}$$

Homma, Tetsuo; Yamamoto, Etsuji; Haga, Yoshinori; Settai, Rikio*; Araki, Shingo*; Inada, Yoshihiko*; Takeuchi, Tetsuya*; Kuwahara, Keitaro*; Amitsuka, Hiroshi*; Sakakibara, T.*; et al.

Physica B; Condensed Matter, 281-282, p.195 - 196, 2000/06

 Times Cited Count:2 Percentile:16.19(Physics, Condensed Matter)

no abstracts in English

Journal Articles

Fermi surface of UB$$_{4}$$ studied by the de Haas-van Alphen oscillation and magnetoresistance experiments

Yamamoto, Etsuji; Homma, Tetsuo; Haga, Yoshinori; Inada, Yoshihiko*; Aoki, Dai*; Tokiwa, Yoshifumi; Suzuki, N.*; Miyake, Kosaku*; Onuki, Yoshichika

Physica B; Condensed Matter, 281-282, p.767 - 768, 2000/06

 Times Cited Count:1 Percentile:8.92(Physics, Condensed Matter)

no abstracts in English

Journal Articles

Observation of heavy electrons in UPd$$_{2}$$Al$$_{3}$$

Haga, Yoshinori; Inada, Yoshihiko*; Yamagami, Hiroshi*; Sakurai, Kenji*; Tokiwa, Yoshifumi; Yamamoto, Etsuji; Homma, Tetsuo*; Onuki, Yoshichika*

Physica B; Condensed Matter, 281-282, p.780 - 781, 2000/06

 Times Cited Count:0 Percentile:0(Physics, Condensed Matter)

no abstracts in English

Journal Articles

Neutron scattering studies on heavy-fermion superconductors

Metoki, Naoto; Koike, Yoshihiro; Haga, Yoshinori; Homma, Tetsuo; Sato, Masugu; Onuki, Yoshichika

Physica B; Condensed Matter, 280(1-4), p.362 - 367, 2000/05

 Times Cited Count:3 Percentile:22.75(Physics, Condensed Matter)

no abstracts in English

Journal Articles

Neutron scattering experiments at high pressure on a heavy fermion superconductor UPd$$_{2}$$Al$$_{3}$$

Homma, Tetsuo; Haga, Yoshinori; Yamamoto, Etsuji; Metoki, Naoto; Koike, Yoshihiro; Osakabe, Toyotaka; Onuki, Yoshichika

Journal of the Physical Society of Japan, 68(12), p.4047 - 4048, 1999/12

 Times Cited Count:1 Percentile:16.38(Physics, Multidisciplinary)

no abstracts in English

Journal Articles

De Haas-van Alphen oscillation in both the normal and superconducting mixed states of UPd$$_{2}$$Al$$_{3}$$

Haga, Yoshinori; Inada, Yoshihiko*; Sakurai, Kenji*; Tokiwa, Yoshifumi; Yamamoto, Etsuji; Homma, Tetsuo*; Onuki, Yoshichika*

Journal of the Physical Society of Japan, 68(2), p.342 - 345, 1999/02

 Times Cited Count:18 Percentile:83.37(Physics, Multidisciplinary)

no abstracts in English

33 (Records 1-20 displayed on this page)