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Tamura, Itaru; Kashima, Yoichi; Soyama, Kazuhiko
JAEA-Research 2014-029, 12 Pages, 2015/03
JAEA-Research-2014-029.pdf:1.89MB
Neutron guide tubes, which are installed near reactor cores, are damaged by neutrons and 
rays irradiation. Those glass substrates which contain boron material are affected by (n, 
) reaction, and ionization effect of rays on material strength decrease duration of use of neutron guide tubes. In order to increase resistance to radiation, we have fabricated a supermirror with Ni-P metallic substrate. The substrate roughness with 0.2 - 0.3 nm (rms) was produced by super- polishing. The neutron reflectivity reached 76 % for an m=3 supermirror.
Mukai, Masayuki; Ueda, Masato; Inada, Daisuke; Yukawa, Kazuhiko; Maeda, Toshikatsu; Iida, Yoshihisa
Proceedings of International Symposium NUCEF 2005, p.219 - 224, 2005/08
For better quantitative understanding of radionuclide migration for safety assessment of geologic disposal, JAERI has been conducting experimental and modeling studies on influences of humic substances, highly alkaline conditions and colloids on sorptive and diffusional behavior of TRU in geologic materials. In the absence of fulvic acid, one of humic substances, diffusion of Am through a tuff sample was not detected. By adding fulvic acid, Am was detected in the downstream cell, which indicates the diffusion through the sample. Highly alkaline conditions arisen from cementitious materials may spread by altering chemical and physical properties of geologic materials. Through-diffusion experiments of alkaline species in granite showed that the effective diffusion coefficient of Ca
and OH
in a cement-equilibrated aqueous solution were found to be higher by almost two orders of magnitude than Na
and OH in a NaOH solution. Radionuclide migration can be enhanced by colloids, and thus a calculation code describing the effect of colloids on radionuclide migration has been required.
thin films grown by MBEYoneda, Yasuhiro; Sakaue, Kiyoshi*; Terauchi, Hikaru*
Surface Science, 529(3), p.283 - 287, 2003/04
Times Cited Count：8 Percentile：42.85(Chemistry, Physical)Ferroelectric BaTiO thin filmwith a thickness of 10ML were epitaxally grown on SrTiO (001) substrate by very slow deposition using MBE. The investigation were carried out by two growth methods: (i) codeposition and (ii) alternate deposition. In-situ observation of RHEED confirmed that an epitaxial cube-on-cube structure was prepared. After the deposition, X-ray diffraction measurements were carried out. The 10-ML-thick BaTiO films were highly 
-axis oriented single crystals with good film quality.
Hiroki, Seiji; Abe, Tetsuya; Tanzawa, Sadamitsu; Nakamura, Junichi*; Obayashi, Tetsuro*
JAERI-Tech 2002-056, 11 Pages, 2002/07
JAERI-Tech-2002-056.pdf:0.79MB
no abstracts in English
Sawa, Kazuhiro; Sumita, Junya; Ueta, Shohei; Takahashi, Masashi; Tobita, Tsutomu*; Hayashi, Kimio; Saito, Takashi; Suzuki, Shuichi*; Yoshimuta, Shigeharu*; Kato, Shigeru*
JAERI-Research 2002-012, 39 Pages, 2002/06
JAERI-Research-2002-012.pdf:3.12MB
no abstracts in English
Moriyama, Shinichi; Kimura, Haruyuki; Fujii, Tsuneyuki; Saigusa, Mikio*; Imai, Tsuyoshi; Yamamoto, Takumi; Arai, H.*; Ota, K.*
Fusion Engineering and Design, 45(1), p.31 - 40, 1999/00
Times Cited Count：2 Percentile：21.16(Nuclear Science & Technology)no abstracts in English
Sugie, Tatsuo; *; Kasai, Satoshi
JAERI-Tech 98-036, 31 Pages, 1998/08
no abstracts in English
*; *; *; *; Ogiwara, Norio; Saido, Masahiro
Nuclear Instruments and Methods in Physics Research B, 117, p.161 - 169, 1996/00
Times Cited Count：11 Percentile：68.04(Instruments & Instrumentation)no abstracts in English
Hidaka, Akihide; Soda, Kunihisa; Sugimoto, Jun
Journal of Nuclear Science and Technology, 32(6), p.527 - 538, 1995/06
Times Cited Count：3 Percentile：36.71(Nuclear Science & Technology)no abstracts in English
Matsui, Hiroshi
Earozoru Kenkyu, 8(2), p.153 - 159, 1993/00
no abstracts in English
; Hino, Ryutaro; Takase, Kazuyuki
Transport Phenomena Science and Technology 1992, p.690 - 695, 1992/00
no abstracts in English
Kimura, Hideo; Munakata, Masahiro
Journal of Nuclear Science and Technology, 28(12), p.1115 - 1127, 1991/12
no abstracts in English
Iguchi, Tadashi; *; Iwamura, Takamichi; ; Okubo, Tsutomu; Onuki, Akira; *; Murao, Yoshio
JAERI-M 91-172, 154 Pages, 1991/10
no abstracts in English
Okubo, Tsutomu; Iguchi, Tadashi; Iwamura, Takamichi; ; Onuki, Akira; Abe, Yutaka; *; Murao, Yoshio
JAERI-M 91-104, 108 Pages, 1991/07
no abstracts in English
Murakami, Yoshio; Abe, Tetsuya; *; *
J. Vac. Sci. Technol., A, 9(3), p.2053 - 2057, 1991/05
no abstracts in English
Okubo, Tsutomu; Iguchi, Tadashi; Iwamura, Takamichi; ; Onuki, Akira; Abe, Yutaka; *; *; Adachi, Hiromichi; Murao, Yoshio
JAERI-M 90-035, 143 Pages, 1990/03
no abstracts in English
Kawamura, Hiroshi;
Journal of Nuclear Science and Technology, 24(12), p.1045 - 1054, 1987/12
Times Cited Count：0 Percentile：0.02(Nuclear Science & Technology)no abstracts in English
Ando, T.; Nakamura, H.; Yoshida, H.; Sunaoshi, H.; Arai, T.; Akino, N.; Hiroki, S.; Yamamoto, Masahiro; Okubo, Minoru; Shimizu, M.*; et al.
Proc. 14th Symp. on Fusion Technology, 1986, Vol.1, p.615 - 620, 1987/00
no abstracts in English
; ; *; *
Nucl.Eng.Des., 94, p.221 - 231, 1986/00
Times Cited Count：6 Percentile：58.99(Nuclear Science & Technology)no abstracts in English
Hirano, Masashi;
JAERI-M 83-002, 78 Pages, 1983/01
no abstracts in English
