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Mizumaki, Masaichiro*; Yoshii, Kenji; Kawamura, Naomi*; Watanabe, Yasuhiro*; Nanao, Susumu*
Physica Status Solidi (C), 3(8), p.2762 - 2766, 2006/09
Times Cited Count：0 Percentile：0.02(Materials Science, Multidisciplinary)We investigated the magnetic phase transition of the Laves phases, which shows the multiple magnetic phase transition, by using X-ray absorption (XAS) and magnetic circular dichroism (MCD). XAS-MCD measurements were performed around the Fe-
and L
edges. The magnet optical sum rule was applied to XAS and MCD spectra of L edges. The orbital and spin magnetic moment were estimated respectively. The orbital magnetic moment increased abruptly below the magnetic phase transition temperature. The spin magnetic moment had no abrupt change at the magnetic phase transition temperature. This shows that there is a strong correlation between the multiple magnetic phase transition and the orbital magnetic moment.
Co
)
Mizumaki, Masaichiro*; Yoshii, Kenji; Watanabe, Yasuhiro*; Nanao, Susumu*
Journal of Alloys and Compounds, 408-412, p.737 - 740, 2006/02
Times Cited Count：3 Percentile：28.59(Chemistry, Physical)We have measured XAS and MCD spectra at Ce L-edges in Ce(FeCo). All the XAS spectra around the Ce-L
edge exhibit a double-peak structure that is the characteristic feature of the mixed-valence system. The ratio of the 4f
peak intensity to the 4f
peak intensity in the Ce L-edges increased as the composition of Co increased. But the MCD and XAS spectral shape changed slightly for Ce(FeCo). As the Co composition increased, MCD intensity decreased. Applying to Sum rules, we found that the orbital magnetic moment of Ce-5d electrons is very small but does exist.
Takeishi, Minoru; Naoto, Miyagawa,; Hitoshi, Watanabe,; Uezu, Yasuhiro; Mizutani, Tomoko; Hiyama, Yoshinori*; Fujii, Jun*
JNC TN8440 2005-008, 136 Pages, 2005/08
JNC-TN8440-2005-008.pdf:4.14MB
This report was written about the effluent control in JNC Tokai Works from 1st April 2004 to 31th March 2005. In this period, the quantities and concentrations of retroactivities in liquid waste from Tokai Works were under the discharge limits of "Safety Regulations for the Tokai Reprocessing Plant " and regulations of government.
Shinohara, Kunihiko; Takeishi, Minoru; Hitoshi, Watanabe,; Uezu, Yasuhiro; Mizutani, Tomoko; Hiyama, Yoshinori*; Fujii, Jun*
JNC TN8440 2004-015, 138 Pages, 2004/12
JNC-TN8440-2004-015.pdf:7.78MB
This report was written about the effluent control in JNC Tokai Works from 1st April 2003 to 31th March 2004. In this period, the quantities and concentrations of retroactivities in liquid waste from Tokai Works were under the discharge limits of "Safety Regulations for the Tokai Reprocessing Plant" and regulations of government.
Takeishi, Minoru; Naoto, Miyagawa,; Hitoshi, Watanabe,; Uezu, Yasuhiro; Nakano, Masanao; Takeyasu, Masanori; Isozaki, Hisaaki
JNC TN8440 2004-002, 149 Pages, 2004/06
JNC-TN8440-2004-002.pdf:3.78MB
Environmental radiation monitoring around the Tokai Reprocessing Plant has been performed since 1975, based on "Safety Regulations for the Tokai Reprocessing Plant, Chapter IV - Environmental Monitoring". This annual report presents the results of the environmental monitoring and the dose estimation to the hypothetical inhabitant due to the radioactivity discharged from the plant during April 2003 to March 2004. Appendices present comprehensive information, such as monitoring program, monitoring results, meteorological data and annual discharges from the plant.
Mizutani, Tomoko; Uezu, Yasuhiro; Hitoshi, Watanabe,; Takeishi, Minoru; Shinohara, Kunihiko; Hiyama, Yoshinori*; Kikuchi, Masaaki*
JNC TN8440 2003-024, 144 Pages, 2003/11
JNC-TN8440-2003-024.pdf:7.72MB
This report was written about the effluent control in JNC Tokai Works from 1st April 2002 to 31th March 2003. In this period, the quantities and concentrations of retroactivities in liquid waste from Tokai Works were under the discharge limits of "Safety Regulations for the Tokai Reprocessing Plant" and regulations of government.
; Mizutani, Tomoko; ; ; Takeishi, Minoru; Shinohara, Kunihiko
JNC TN8440 2002-016, 135 Pages, 2002/11
JNC-TN8440-2002-016.pdf:4.33MB
This report was written about the effluent control in JNC Tokai Works ch 2001. In this period, the quantities and concentrations of radioactivities in liquid waste from Tokai works were under the discharge limits of "Safety regulations for the Tokai Repressing Plant" and regulations of government.
Uezu, Yasuhiro; Watanabe, Hitoshi; Takeishi, Minoru; Shinohara, Kunihiko
Saikuru Kiko Giho, (14), 181- Pages, 2002/00
None
; Watanabe, Hitoshi; Takeishi, Minoru; Shinohara, Kunihiko
Saikuru Kiko Giho, (12), p.139 - 144, 2001/09
None
; Watanabe, Hitoshi; Maruo, Yoshihiro; Shinohara, Kunihiko
Hoken Butsuri, 36(3), p.207 - 212, 2001/00
None
Uezu, Yasuhiro; Nakano, Masanao; Fujita, Hiroki; Watanabe, Hitoshi; Maruo, Yoshihiro; Shinohara, Kunihiko
Proceedings of the International Workshop on Distribution and Speciation of Radionuclides in the Environment, p.354 - 357, 2000/00
Iodine-129 is an important radionuclide for environmental assessment, because it has a long half-life. A new analytical technique with Microwave Induced Plasma Mass Spectrometry (MIP-MS) was applied to the determination of iodine-129 (
I) in the environmental samples. Environmental samples contain a large amount of matrices elements. Therefore, the interference elements were eliminated by ashing at 1000
C, and iodine was trapped by activated charcoal and finally extracted by tetramethylammonium hydroxide (TMAH). I-129 in the soil sample was also analyzed by conventional method [neutron activation analysis (NAA)] and MIP-MS method. The analytical data by MIP-MS and NAA methods showed excellent agreement.
Uezu, Yasuhiro; Morita, Shigemitsu; ; ; ;
Health Physics, 0 Pages, 1997/00
None
Kuwata, Haruka*; Hagiwara, Hiroki; Yanagisawa, Kayo; Manabe, Sachi*; Takeishi, Minoru; Watanabe, Hitoshi; Uezu, Yasuhiro
no journal, ,
no abstracts in English
Kuwata, Haruka*; Hagiwara, Hiroki; Yanagisawa, Kayo*; Manabe, Sachi*; Takeishi, Minoru; Watanabe, Hitoshi; Uezu, Yasuhiro
no journal, ,
