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-ray irradiationSano, Yuichi; Ambai, Hiromu; Takeuchi, Masayuki; Iijima, Shizuka; Uchida, Naoki
Journal of Nuclear Materials, 493, p.200 - 206, 2017/09
Times Cited Count：7 Percentile：56.46(Materials Science, Multidisciplinary)Concerning the Fukushima Daiichi Nuclear Power Plant accident, we investigated the effect of chloride ion on the corrosion behavior of SUS316L stainless steel, which is a typical material for the equipment used in reprocessing, in HNO
solution containing seawater components, including under the -ray irradiation condition. Electrochemical and immersion tests were carried out using a mixture of HNO and artificial seawater (ASW). In the HNO solution containing high amounts of ASW, the cathodic current densities increased and uniform corrosion progressed. This might be caused by strong oxidants, such as Cl
and NOCl, generated in the reaction between HNO and Cl
ions. The corrosion rate decreased with the immersion time at low concentrations of HNO, while it increased at high concentrations. Under the -ray irradiation condition, the corrosion rate decreased due to the suppression of the cathodic reactions by the reaction between the above oxidants and HNO generated by radiolysis.
Nishitani, Takeo; Sugie, Tatsuo; Morishita, Norio; Yokoo, Noriko*
Fusion Engineering and Design, 74(1-4), p.871 - 874, 2005/11
Times Cited Count：13 Percentile：65.32(Nuclear Science & Technology)no abstracts in English
Sato, Satoshi; Tanaka, Teruya*; Hori, Junichi; Ochiai, Kentaro; Nishitani, Takeo; Muroga, Takeo*
Journal of Nuclear Materials, 329-333(Part2), p.1648 - 1652, 2004/08
Times Cited Count：2 Percentile：17.16(Materials Science, Multidisciplinary)no abstracts in English
Norisue,Tomohisa*; Kida, Yusuke*; Masui, Naoki*; Tran-Cong-Miyata, Q.*; Maekawa, Yasunari; Yoshida, Masaru; Shibayama, Mitsuhiro*
Macromolecules, 36(16), p.6202 - 6212, 2003/08
Times Cited Count：76 Percentile：89.41(Polymer Science)The shrinking kinetics of poly(N-isopropylacrylamide) (PNIPA) gels has been studied for two types of PNIPA gels prepared by (i) copolymerization of constituent monomer and cross-linker and (ii) -ray irradiation in the PNIPA solutions in order to investigate the role of cross-linking on shrinking kinetics. The shrinking kinetics of the monomer cross-linked gels is quite similar to that of the polymer cross-linked gels. On the other hand, a significant difference was found when the microscopic structure and the dynamics were investigated by small-angle neutron scattering (SANS) and static/dynamic light scattering (SLS/DLS). The degree of built-in inhomogeneities and dynamic fluctuations were evaluated as a function of the cross-linking degree and the gel preparation temperature by intensity decomposition methods for both types of gels. It is concluded that the monomer cross-linked gels have extra built-in inhomogeneities due to the spatial distribution of crosslinks in addition to the frozen concentration fluctuations inherent in polymer gels.
Baba, Shinichi; Ishihara, Masahiro; Sozawa, Shizuo; Sekino, Hajime
JAERI-Data/Code 2003-003, 394 Pages, 2003/03
JAERI-Data-Code-2003-003.pdf:13.63MB
The research on the radiation damage mechanism of heat resistant ceramic composite materials is one of the research subjects of the innovative basic research in the field of high temperature engineering, using the High Temperature engineering Test Reactor (HTTR). Three series of irradiation tests on the heat resistant ceramic composite materials, first to third irradiation test program, were carried out using the Japan Material Testing Reactor (JMTR). This is a summary report on the the first irradiation test program; irradiation induced dimensional change, thermal expansion coefficient, X-ray diffraction and -ray spectrum are reported.
Yamauchi, Michinori*; Nishitani, Takeo; Ochiai, Kentaro; Morimoto, Yuichi*; Hori, Junichi; Ebisawa, Katsuyuki*; Kasai, Satoshi
JAERI-Tech 2002-032, 41 Pages, 2002/03
JAERI-Tech-2002-032.pdf:2.62MB
A micro-fission chamber and a dummy chamber without uranium were fabricated and the performance was tested. They are designed to be installed inside the vacuum vessel of compact ITER (ITER-FEAT) for neutron monitoring. Vacuum leak rate of the chamber, resistances between central conductor and outer sheath, and mechanical strength up to 50G acceleration were confirmed to meet design criteria. Gamma-ray sensitivity was measured with 
Co gamma-ray irradiation facility at JAERI Takasaki. The output signals for gamma-rays in Campbelling mode were estimated to be less than 0.1% those by neutrons at the location behind the blanket module in ITER-FEAT. Detector response for 14 MeV neutrons was investigated with the FNS facility. Excellent linearity between count rates and neutron fluxes was confirmed. According to the test for the change of surrounding materials, the sensitivity was enhanced by slow-downed neutrons, which agreed with the calculation result by MCNP-4C code. As a result, it was concluded that the developed micro-fission chamber is applicable for ITER-FEAT.
Toyoda, Masayuki*
JAERI-Review 2001-004, 494 Pages, 2001/03
JAERI-Review-2001-004.pdf:31.77MB
no abstracts in English
Wahyuni, S.*; Hirota, Koichi; Hakoda, Teruyuki; Arai, Hidehiko; Hashimoto, Shoji; Kawamoto, Fumio*; Mukunoki, Yasuo*
Bulletin of the Chemical Society of Japan, 73(8), p.1939 - 1943, 2000/08
Times Cited Count：2 Percentile：16.95(Chemistry, Multidisciplinary)no abstracts in English
Kojima, Takuji; Sunaga, Hiromi; Tachibana, Hiroyuki; Takizawa, Haruki; Tanaka, Ryuichi
IAEA-TECDOC-156, p.91 - 98, 2000/06
no abstracts in English
Toyoda, Masayuki*; Koyama, Yoshimi
JAERI-Review 2000-004, p.398 - 0, 2000/03
JAERI-Review-2000-004.pdf:19.39MB
no abstracts in English
*; Obara, Kenjiro; Tada, Eisuke; Morita, Yosuke; Yagi, Toshiaki; *
JAERI-Tech 99-029, 36 Pages, 1999/03
no abstracts in English
*;
JAERI-Review 99-007, 528 Pages, 1999/03
JAERI-Review-99-007.pdf:29.12MB
no abstracts in English
*; *; *; *; Ito, Masayuki; Seguchi, Tadao
IEEE Trans. Dielect. Elect. Insul., 2(1), p.54 - 61, 1995/02
Times Cited Count：12 Percentile：67.69(Engineering, Electrical & Electronic)no abstracts in English
C.D.Jonah*; *
JAERI-M 93-248, 33 Pages, 1994/01
no abstracts in English
-irradiated PbCl crystals*; *;
Japanese Journal of Applied Physics, 32(10), p.4674 - 4679, 1993/10
Times Cited Count：14 Percentile：60.83(Physics, Applied)no abstracts in English
Kojima, Takuji; ; ; Tachibana, Hiroyuki; Tanaka, Ryuichi
Applied Radiation and Isotopes, 43(10), p.1197 - 1202, 1992/00
no abstracts in English
-ray irradiationG.M.Qin*; ; Hatada, Motoyoshi
JAERI-M 91-106, 114 Pages, 1991/07
no abstracts in English
Ono, Hideo
Journal of Nuclear Materials, 179-181, p.60 - 63, 1991/00
Times Cited Count：5 Percentile：53.87(Materials Science, Multidisciplinary)no abstracts in English
*; Hosoi, Fumio; ; *
Chem.Pharm.Bull., 35(5), p.2045 - 2051, 1987/05
no abstracts in English
*; Hosoi, Fumio; ; *
Kobunshi Rombunshu, 43(1), p.51 - 58, 1986/00
Times Cited Count：2 Percentile：20.27(Polymer Science)no abstracts in English
