Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Sakakibara, Hiroshi; Aoki, Nobuhiro; Muto, Masahiro; Otabe, Jun; Takahashi, Kenji*; Fujita, Naoyuki*; Hiyama, Kazuhiko*; Suzuki, Hirokazu*; Kamogawa, Toshiyuki*; Yokosuka, Toru*; et al.
JAEA-Technology 2020-020, 73 Pages, 2021/03
JAEA-Technology-2020-020.pdf:8.26MB
The decommissioning is currently in progress at the prototype fast breeder reactor Monju. Fuel assemblies will be taken out of its core for the first step of the great task. Fuel assemblies stand on their own spike plugged into a socket on the core support plate and support with adjacent assemblies through their housing pads each other, resulting in steady core structure. For this reason, some substitutive assemblies are necessary for the purpose of discharging the fuel assemblies of the core. Monju side commissioned, therefore, Plutonium Fuel Development Center to manufacture the substitutive assemblies and the Center accepted it. This report gives descriptions of design, manufacture, and shipment in regard to the substitutive assemblies.
Si studied by angle-resolved photoelectron spectroscopy; Elucidating the contribution of U 5
states in URu
SiFujimori, Shinichi; Kobata, Masaaki; Takeda, Yukiharu; Okane, Tetsuo; Saito, Yuji; Fujimori, Atsushi; Yamagami, Hiroshi; Matsumoto, Yuji*; Yamamoto, Etsuji; Tateiwa, Naoyuki; et al.
Physical Review B, 96(12), p.125117_1 - 125117_9, 2017/09
Times Cited Count：10 Percentile：45.59(Materials Science, Multidisciplinary)Kobayashi, Kazuhiro; Torikai, Yuji*; Saito, Makiko; Alimov, V. Kh.*; Miya, Naoyuki; Ikeda, Yoshitaka
Fusion Science and Technology, 67(2), p.428 - 431, 2015/03
Times Cited Count：0 Percentile：0.01(Nuclear Science & Technology)Disassembly of the JT-60U torus was started in 2010 after 18 years deuterium operations. In the disassembly of the JT-60U torus, tritium retention in the vacuum vessel of the JT-60U is one of the most important safety issues for the fusion reactor. It was very important to study the tritium behavior in Inconel 625 from viewpoint of the clearance procedure in the future plan. After the tritium release for about 1 year at 298 K, the residual tritium in the specimen was released by heating up to 1073 K, and then the residual tritium in the specimen was measured by chemical etching method. Most of the chemical form of the released tritium was HTO. The contaminated specimen by tritium was released continuously the diffusible tritium under the ambient condition. In the tritium release experiment, most of tritium in the specimen was released during 1 year.
Tokunaga, Yo; Saito, Yo*; Sakai, Hironori; Kambe, Shinsaku; Sanada, Naoyuki*; Watanuki, Ryuta*; Suzuki, Kazuya*; Kawasaki, Yu*; Kishimoto, Yutaka*
Physical Review B, 84(21), p.214403_1 - 214403_7, 2011/12
Times Cited Count：8 Percentile：36.09(Materials Science, Multidisciplinary)We report NMR studies of TbCoGa, which has the tetragonal HoCoGa structure and exhibits two antiferromagnetic (AF) transitions at 
=36.2 K and 
=5.4 K. From a symmetry analysis of internal magnetic fields at orthorhombic Ga sites, we have successfully determined the magnetic structures in the AF-I (
) and AF-II (
) phases. The AF-I phase is a collinear AF order with a propagation vector ![$$q=[1/2, 0, 1/2]$$](/search/images/ERYT0WZRF2ZCYIBQFQQDCLZSLUSA.gif)
and ordered moments parallel to the [001] direction. In the AF-II phase, on the other hand, we found a non-collinear AF structure described by double propagation vectors ![$$q_1=[1/2, 0, 1/2]$$](/search/images/ERYV4MJ3LMYS4MRMEAYCYIBRF2ZF0JA.gif)
and ![$$q_{2}=[0, 1/2, 1/2]$$](/search/images/ERYV44ZSPU4VWMBMEAYS4MRMEAYS4MS3EQ.gif)
, where the moments tilt away from the [001] direction toward [100], keeping a constant value along the [001] direction. In the context of these results we discuss the possible presence of magnetic frustration in this system.
Pd
Si
Yanagisawa, Tatsuya*; Tateiwa, Naoyuki; Mayama, Taichi*; Saito, Hitoshi*; Hidaka, Hiroyuki*; Amitsuka, Hiroshi*; Haga, Yoshinori; Nemoto, Yuichi*; Goto, Terutaka*
Journal of the Physical Society of Japan, 80(Suppl.A), p.SA105_1 - SA105_3, 2011/07
Times Cited Count：3 Percentile：27.45(Physics, Multidisciplinary)Tobita, Kenji; Nishio, Satoshi; Enoeda, Mikio; Kawashima, Hisato; Kurita, Genichi; Tanigawa, Hiroyasu; Nakamura, Hirofumi; Honda, Mitsuru; Saito, Ai*; Sato, Satoshi; et al.
Nuclear Fusion, 49(7), p.075029_1 - 075029_10, 2009/07
Times Cited Count：139 Percentile：97.7(Physics, Fluids & Plasmas)Recent design study on SlimCS focused mainly on the torus configuration including blanket, divertor, materials and maintenance scheme. For vertical stability of elongated plasma and high beta access, a sector-wide conducting shell is arranged in between replaceable and permanent blanket. The reactor adopts pressurized-water-cooled solid breeding blanket. Compared with the previous advanced concept with supercritical water, the design options satisfying tritium self-sufficiency are relatively scarce. Considered divertor technology and materials, an allowable heat load to the divertor plate should be 8 MW/m
or lower, which can be a critical constraint for determining a handling power of DEMO (a combination of alpha heating power and external input power for current drive).
Yamasaki, Chisato*; Murakami, Katsuhiko*; Fujii, Yasuyuki*; Sato, Yoshiharu*; Harada, Erimi*; Takeda, Junichi*; Taniya, Takayuki*; Sakate, Ryuichi*; Kikugawa, Shingo*; Shimada, Makoto*; et al.
Nucleic Acids Research, 36(Database), p.D793 - D799, 2008/01
Times Cited Count：52 Percentile：71.15(Biochemistry & Molecular Biology)Here we report the new features and improvements in our latest release of the H-Invitational Database, a comprehensive annotation resource for human genes and transcripts. H-InvDB, originally developed as an integrated database of the human transcriptome based on extensive annotation of large sets of fulllength cDNA (FLcDNA) clones, now provides annotation for 120 558 human mRNAs extracted from the International Nucleotide Sequence Databases (INSD), in addition to 54 978 human FLcDNAs, in the latest release H-InvDB. We mapped those human transcripts onto the human genome sequences (NCBI build 36.1) and determined 34 699 human gene clusters, which could define 34 057 protein-coding and 642 non-protein-coding loci; 858 transcribed loci overlapped with predicted pseudogenes.
Tamai, Hiroshi; Konoshima, Shigeru; Hosogane, Nobuyuki; Asakura, Nobuyuki; Sakata, Shinya; Saito, Naoyuki; *; Akasaka, Hiromi; Kawamata, Yoichi; Kurihara, Kenichi
Fusion Engineering and Design, 39-40, p.163 - 167, 1998/00
Times Cited Count：9 Percentile：60.32(Nuclear Science & Technology)no abstracts in English
Neyatani, Yuzuru; Fukuda, Takeshi; Nishitani, Takeo; Yoshino, Ryuji; Kawamata, Yoichi; Sakata, Shinya; Saito, Naoyuki; Kimura, Toyoaki
Fusion Engineering and Design, 36(2-3), p.429 - 433, 1997/05
Times Cited Count：12 Percentile：67.87(Nuclear Science & Technology)no abstracts in English
Sakata, Shinya; *; *; *; Aoyagi, Tetsuo; Saito, Naoyuki; Harada, Hiro; Tani, Keiji
JAERI-M 94-050, 32 Pages, 1994/03
no abstracts in English
Tokunaga, Yo; Saito, Yo*; Sakai, Hironori; Kambe, Shinsaku; Sanada, Naoyuki*; Watanuki, Ryuta*; Suzuki, Kazuya*; Kawasaki, Yu*; Kishimoto, Yutaka*
no journal, ,
We report NMR studies of TbCoGa, which has the tetragonal HoCoGa structure and exhibits two antiferromagnetic (AF) transitions at 
=36.2 K and 
=5.4 K. From analysis of the internal fields at Ga sites, we have determined the magnetic structures of the AF-I (
) and the AF-II (
) phases. The AF-I phase is a collinear AF order with the propagation vector q=[1/2, 0, 1/2] and with ordered moments parallel to the c axis. This is in accordance with the neutron diffraction measurements. In the AF-II phase, on the other hand, we found a non-collinear AF structure described with double propagation vectors 
=[1/2, 0, 1/2] and 
=[0, 1/2, 1/2]. Interestingly, the NMR reveals that the c component of the Tb moments does not change value between the AF-I and the AF-II phases, even though an a component is newly developed in the AF-II phase.
Saito, Makiko; Sukegawa, Atsuhiko; Kobayashi, Kazuhiro; Miya, Naoyuki; Ikeda, Yoshitaka
no journal, ,
no abstracts in English
Si studied by ARPESFujimori, Shinichi; Kobata, Masaaki; Takeda, Yukiharu; Okane, Tetsuo; Saito, Yuji; Fujimori, Atsushi; Yamagami, Hiroshi; Matsumoto, Yuji*; Yamamoto, Etsuji; Tateiwa, Naoyuki; et al.
no journal, ,
no abstracts in English
Si studied by ARPESFujimori, Shinichi; Kobata, Masaaki; Takeda, Yukiharu; Okane, Tetsuo; Saito, Yuji; Fujimori, Atsushi; Yamagami, Hiroshi; Matsumoto, Yuji*; Yamamoto, Etsuji; Tateiwa, Naoyuki; et al.
no journal, ,
ThRuSi is an isostructural compound of the heavy fermion superconductor URuSi which shows the hidden order transition. Since ThRuSi does not have 5f electrons, it is a good reference material to understand the contribution of U 5f electrons in the electronic structure of URuSi. In the present study, we have revealed the band structure and Fermi surface of ThRuSi by angle resolved photoelectron spectroscopy (ARPES) using soft X-rays (hn = 600-800 eV). The experimentally obtained band structure and Fermi surface are compared with those of URuSi as well as the result of the band structure calculation. We have found that the states in the vicinity of EF are very different in ThRuSi and URuSi, suggesting that U 5f electrons form itinerant bands in URuSi. The details of the electronic structure of ThRuSi and the contributions from U 5f electrons in the band structure and Fermi surface of URuSi are discussed.
Sakakibara, Hiroshi; Aoki, Nobuhiro; Muto, Masahiro; Otabe, Jun; Takahashi, Kenji*; Fujita, Naoyuki*; Hiyama, Kazuhiko*; Suzuki, Hirokazu*; Kamogawa, Toshiyuki*; Yokosuka, Toru*; et al.
no journal, ,
no abstracts in English
