Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Okamoto, Yoshihiro; Nagai, Takayuki; Kaneko, Koji; Motokawa, Ryuhei; Haga, Yoshinori; Yamanaka, Keisuke*; Ota, Toshiaki*
2017-Nendo Seika Kokaigata Riyo Seika Hokokusho (Ritsumeikan Daigaku SR Senta), p.33 - 36, 2018/00
The high-level radioactive waste solution which generated from a spent nuclear fuel reprocessing process are mixed with a borosilicate glass frit in a vitrification process, and a chemical stable glass solidified body is produced. To understand local structure of light elements included in a glass solidified body, we carried out a B K-edge XANES measurement of raw glass frits and simulated radioactive waste glasses. As a result of this estimation of boron local structure in glass samples, it was found that the sp
type boron (BO
) percentage increases and the sp
type (BO
) percentage by increasing the sodium content in glass frits.
and 
X-ray diffractions of corrosion products freshly formed on the surface of an iron-silicon alloySuzuki, Shigeru*; Matsubara, Eiichiro*; Komatsu, Takuya*; Okamoto, Yoshinori*; Kanie, Kiyoshi*; Muramatsu, Atsushi*; Konishi, Hiroyuki; Mizuki, Junichiro; Waseda, Yoshio*
Corrosion Science, 49(3), p.1081 - 1096, 2007/03
Times Cited Count：32 Percentile：80.42(Materials Science, Multidisciplinary) X-ray diffraction measurements of a small amount of samples extracted from wet corrosion products freshly formed on a pure iron and iron-2 mass% silicon surfaces have been conducted using synchrotron radiation. The results showed that 
-FeOOH was formed on the outer side of wet corrosion products formed on the pure iron by sodium chloride solution, while -FeOOH, 
-FeOOH, FeO, and green rusts were formed on the inner side. In comparison to the case of the pure iron, a significant formation of 
-FeOOH was observed in the iron-silicon alloy. Furthermore, in-situ diffraction measurements by a conventional X-ray source were conducted for analyzing corrosion products formed on the pure iron and iron-silicon alloy surfaces by cyclic exposure to wet and dry atmospheres. The results obtained by the diffraction and 
diffraction measurements on the corrosion products were consistent.
Okane, Tetsuo; Takeda, Yukiharu; Fujimori, Shinichi; Saito, Yuji; Okamoto, Jun*; Mamiya, Kazutoshi*; Muramatsu, Yasuji*; Fujimori, Atsushi; Ochiai, Akira*; Haga, Yoshinori; et al.
Journal of the Physical Society of Japan, 75(Suppl.), p.105 - 106, 2006/08
no abstracts in English
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：12 Percentile：58.26(Physics, Multidisciplinary)no abstracts in English
electrons in Ce
In
(=Rh, Ir)Fujimori, Shinichi; Okane, Tetsuo; Okamoto, Jun; Mamiya, Kazutoshi; Muramatsu, Yasuji; Fujimori, Atsushi*; Harima, Hisatomo*; Aoki, Dai*; Ikeda, Shugo*; Shishido, Hiroaki*; et al.
Physical Review B, 67(14), p.144507_1 - 144507_5, 2003/04
Times Cited Count：35 Percentile：79.9(Materials Science, Multidisciplinary)We have performed angle-resolved photoemission spectroscopy (
~eV) and 3
-4 resonant photoemission spectroscopy (
~eV) studies on the layered cerium compounds CeIn (=Rh and Ir), which show competition between superconductivity and antiferromagnetism. The results suggest that the Ce~4 electrons in both compounds are nearly localized. We have found that although the Ce~4 electrons in the superconducting CeIrIn are more delocalized than those in the antiferromagnetic CeRhIn, their electronic structures are very similar to each other.
Yamamoto, Toshihiro; Miyoshi, Yoshinori; Tonoike, Kotaro; Okamoto, Hajime*; Ida, Toshikazu*; Aoki, Shigeaki*
Journal of Nuclear Science and Technology, 40(2), p.77 - 83, 2003/02
Times Cited Count：8 Percentile：49.89(Nuclear Science & Technology)no abstracts in English
Okamoto, Makoto*; Kitajima, Masahiro*; Kobayashi, Yoshinori*; Kiuchi, Kiyoshi*; Kano, Shigeki
Nihon Genshiryoku Gakkai-Shi, 37(9), p.796 - 806, 1995/00
Times Cited Count：0 Percentile：0.01(Nuclear Science & Technology)None
Shiwaku, Hideaki; Yaita, Tsuyoshi; Suzuki, Shinichi; Kobayashi, Toru; Miyazaki, Yuji; Awual, M. R.; Motokawa, Ryuhei; Okamoto, Yoshihiro; Matsumura, Daiju; Yoshii, Kenji; et al.
no journal, ,
no abstracts in English
Nagai, Takayuki; Kaneko, Koji; Motokawa, Ryuhei; Okamoto, Yoshihiro; Haga, Yoshinori; Kobayashi, Hiromi*; Homma, Masanobu*; Hatakeyama, Kiyoshi*; Hirono, Kazuya*
no journal, ,
no abstracts in English
Nagai, Takayuki; Kaneko, Koji; Motokawa, Ryuhei; Okamoto, Yoshihiro; Haga, Yoshinori
no journal, ,
no abstracts in English
Nagai, Takayuki; Okamoto, Yoshihiro; Kaneko, Koji; Motokawa, Ryuhei; Haga, Yoshinori; Yamagishi, Hirona*; Yamanaka, Keisuke*; Ota, Toshiaki*
no journal, ,
no abstracts in English
