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Kitamura, Akihisa*; Okazaki, Sota*; Kondo, Mitsuru*; Watanabe, Takahiro; Nakanishi, Toshimichi*; Hori, Rie*; Ikeda, Masayuki*; Ichimura, Koji; Nakagawa, Yuki; Mori, Hideki*
Shizuoka Daigaku Chikyu Kagaku Kenkyu Hokoku, (49), p.73 - 86, 2022/07
On July 3 2021, a debris flow caused by a landslide from a landfill occurred along the Aizome River in the Izusan area of Atami City, Shizuoka. In this study, debris flow deposits and soil samples were characterized in terms of their sedimentology and geochemically analyzed.
Se as a probe of neutron capture for the s-process branch-point nucleus 
Makinaga, Ayano*; Hohara, Shinya*; Utsunomiya, Hiroaki*; Goko, Shinji*; Kaihori, Takeshi*; Akimune, Hidetoshi*; Yamagata, Tamio*; Goriely, S.*; Toyokawa, Hiroyuki*; Harano, Hideki*; et al.
Proceedings of Science (Internet), 28, p.239_1 - 239_4, 2010/12
no abstracts in English
Se; Implications for the s-process branching at SeMakinaga, Ayano*; Utsunomiya, Hiroaki*; Goriely, S.*; Kaihori, Takeshi*; Goko, Shinji*; Akimune, Hidetoshi*; Yamagata, Tamio*; Toyokawa, Hiroyuki*; Matsumoto, Tetsuro*; Harano, Hideki*; et al.
Physical Review C, 79(2), p.025801_1 - 025801_8, 2009/02
Times Cited Count：25 Percentile：79.65(Physics, Nuclear)Photoneutron cross sections were measured for Se immediately above the neutron separation energy with quasimonochromatic 
-ray beams to experimentally constrain the E1 strength function for Se. Two sets of the strength function and the level density that equally meet the experimental constraint predict largely different neutron capture cross sections for Se. Based on the Maxwell-averaged cross sections of the latest compilation complemented with the predicted cross sections for Se, we calculated 
N values of the main s-process component using a phenomenological model and deduced empirical abundances of the weak s-process component.
Se; Implications for the s-process thermometerMakinaga, Ayano*; Utsunomiya, Hiroaki*; Kaihori, Takeshi*; Yamagata, Tamio*; Akimune, Hidetoshi*; Goriely, S.*; Toyokawa, Hiroyuki*; Matsumoto, Tetsuro*; Harano, Hideki*; Harada, Hideo; et al.
Nuclear Physics A, 805(1-4), p.564 - 566, 2008/06
Photoneutron cross sections were measured for Se near the neutron threshold energy with quasi-monochromatic rays. Using the Se(,
) cross section as experimental constraints on the E1 strength function, we estimate the neutron capture rates for Se. The solar abundance ratio of s-only nuclides Kr and 
Kr are analyzed in terms of the s-process branching at Se within the local approximation. The corresponding temperature and neutron density regimes are discussed in the light of the s-process scenario in massive stars.
SeMakinaga, Ayano*; Utsunomiya, Hiroaki*; Goko, Shinji*; Kaihori, Takeshi*; Harada, Hideo; Kitatani, Fumito; Hara, Kaoru; Toyokawa, Hiroyuki*; Harano, Hideki*; Matsumoto, Tetsuro*; et al.
no journal, ,
no abstracts in English
Ishikawa, Norito; Okamoto, Yoshihiro; Hirao, Norie*; Nakagawa, Sho*; Iwase, Akihiro*; Hori, Fuminobu*; Ono, Hirotaka*; Kitagawa, Michiharu*; Oshima, Ryuichiro*
no journal, ,
In reactor pressure vessel, hardening due to irradiation is partly originated from Cu precipitation promoted by irradiation. In this study, development of evaluation methodology for embrittlement phenominon is the main objective, and it has been found that hardness change due to irradiation correlates well with accompanied electrical resistivity change.
doped with GdO
Tahara, Yuki*; Zhu, B.-L.*; Kosugi, Shinya*; Ishikawa, Norito; Okamoto, Yoshihiro; Baba, Yuji; Hirao, Norie; Hori, Fuminobu*; Matsui, Toshiyuki*; Iwase, Akihiro*
no journal, ,
In present light-water nuclear power plants, it is useful to dope some elements, which have a high neutron absorption cross section, into fuels (UO) in order to control the initial reactivity. During the operation of reactors, UO fuels are exposed to irradiation with high energy fission products which have energies around 100 MeV. Therefore, it is important to study the effects of high energy fission products on UO fuels. Cerium dioxide (CeO) has been used so far as a simulation material for UO because it has the same fluorite structure as that of UO. In this study, CeO pellets doped with GdO were irradiated with 200 MeV Xe
ions to simulate the irradiation effects of high energy fission products on UO doped with GdO. The X-ray diffraction spectra show that the lattice constant of CeO increases with increasing the amount of the Gd-doping. In addition, it also increases by the irradiation and the effect of the irradiation becomes more remarkable by doping GdO.
doped with GdOTahara, Yuki*; Zhu, B.-L.*; Kosugi, Shinya*; Hori, Fuminobu*; Matsui, Toshiyuki*; Iwase, Akihiro*; Ishikawa, Norito; Okamoto, Yoshihiro; Baba, Yuji; Hirao, Norie
no journal, ,
no abstracts in English
doped with GdO and ErOTahara, Yuki*; Zhu, B.-L.*; Kosugi, Shinya*; Hori, Fuminobu*; Matsui, Toshiyuki*; Iwase, Akihiro*; Ishikawa, Norito; Okamoto, Yoshihiro; Baba, Yuji; Hirao, Norie
no journal, ,
no abstracts in English
Horie, Hideki*; Takeuchi, Yutaka*; Kakiuchi, Kazuo*; Sato, Hisaki*; Shirasu, Noriko; Saito, Hiroaki; Yamashita, Shinichiro; Fukahori, Tokio
no journal, ,
The problem in the accident tolerance fuel development was considered in comparison the fuel behavior of SiC/SiC composite cladding tube with current Zry cladding tube. In this study, Reactivity Initiated Accident (RIA) was evaluated using the plant excess security analysis code TRACTTM and the fuel performance code FEMAXI.
