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Shimokita, Keisuke*; Yamamoto, Katsuhiro*; Miyata, Noboru*; Shibata, Motoki*; Nakanishi, Yohei*; Arakawa, Masato*; Takenaka, Mikihito*; Kida, Takumitsu*; Tokumitsu, Katsuhisa*; Tanaka, Ryo*; et al.
Langmuir, 40(30), p.15758 - 15766, 2024/07
Times Cited Count：0 Percentile：0.00(Chemistry, Multidisciplinary)Myagmarjav, O.; Iwatsuki, Jin; Tanaka, Nobuyuki; Noguchi, Hiroki; Kamiji, Yu; Ioka, Ikuo; Kubo, Shinji; Nomura, Mikihiro*; Yamaki, Tetsuya*; Sawada, Shinichi*; et al.
International Journal of Hydrogen Energy, 44(35), p.19141 - 19152, 2019/07
Times Cited Count：18 Percentile：46.97(Chemistry, Physical)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：70.66(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.
-ray study of the neutron-rich nuclei of 
U, 
Pu, and 
Cm produced by the (
O, 
O) reactionIshii, Tetsuro; Shigematsu, Soichiro*; Makii, Hiroyuki; Asai, Masato; Tsukada, Kazuaki; Toyoshima, Atsushi; Matsuda, Makoto; Makishima, Akiyasu*; Shizuma, Toshiyuki; Kaneko, Junichi*; et al.
Physics of Atomic Nuclei, 70(8), p.1457 - 1461, 2007/08
Times Cited Count：11 Percentile：60.70(Physics, Nuclear)We have measured deexcitation rays in the neutron-rich nuclei of U, Pu and Cm. These nuclei were produced by the (O, O) two-neutron transfer reactions with a 200, 162 and 162 MeV O beams and a 
U, 
Pu and 
Cm targets, respectively, using the tandem accelerator at Tokai, Japan. The rays in residual nuclei were measured by taking coincidence with scattering particles using Si 
-
detectors. We have identified rays in U, Pu and Cm by selecting the kinetic energies of O particles which correspond to the excitation energies in these nuclei below their neutron separation energies. The ground-state bands of U, Pu and Cm were established up to 12
states and the 
octupole band of U was established up to 9
state. Because the deformations of these nuclei are well developed, the moments of inertia reflect the pairing gap, which is expected to be smaller, resulting in a larger moment of inertia, at the deformed shell closure. We have found that the moment of inertia of the ground-state band of Cm
is considerably larger than that of Cm
. This fact supports the existence of the deformed subshell closure at 
in Cm isotopes. On the other hand, the moment of inertia of Pu was found to be smaller than that of Pu
, which suggests that the deformed subshell closure at weakens or disappears in Pu isotopes. These results are consistent with the prediction by a cranking model calculation.
CmIshii, Tetsuro; Shigematsu, Soichiro; Makii, Hiroyuki; Asai, Masato; Tsukada, Kazuaki; Toyoshima, Atsushi; Matsuda, Makoto; Makishima, Akiyasu*; Shizuma, Toshiyuki; Kaneko, Junichi*; et al.
Journal of the Physical Society of Japan, 75(4), p.043201_1 - 043201_4, 2006/04
Times Cited Count：19 Percentile：67.75(Physics, Multidisciplinary)The ground-state band of the neutron-rich transuranium nucleus Cm was established up to spin 12 by in-beam -ray spectroscopy using the two-neutron-transfer reaction with a Cm target and a 162 MeV O beam. Deexcitation rays in Cm were identified by selecting the kinetic energies of O particles with Si - detectors. The moment of inertia of Cm is considerably smaller than that of Cm, which supports the existence of the deformed subshell closure at in Cm isotopes.
Okamura, Masachika*; Yasuno, Noriko*; Otsuka, Masako*; Tanaka, Atsushi; Shikazono, Naoya; Hase, Yoshihiro
Nuclear Instruments and Methods in Physics Research B, 206, p.574 - 578, 2003/05
Times Cited Count：93 Percentile：97.62(Instruments & Instrumentation)Resent studies indicate that the ion beams have higher mutation frequency than low-LET radiations in plants but the difference in mutation spectrum still remains to be characterized. We investigated the efficiency of ion-beam irradiation combined with tissue culture in obtaining floral mutants. Leaves collected from carnation plants, cultivar Vital (cherry pink flowers with frilly petals), were irradiated with carbon ions or X-rays. They were cultured till the shoots regenerated. Sixteen mutants were obtained from 705 regenerated plants by carbon-ion irradiation. Those mutants were rich in variety, i.e., pink, dark pink, light pink, salmon, red, complex- and striped-color, and round and Dianthus-type petals were obtained. In contrast, 7 mutants obtained from 556 regenerated plants by X-rays were only pink, light pink and red. These results indicate that the ion beams could induce wider variety of flower-color and shape mutant than X-rays, and also indicate that the combined method of ion-beam irradiation with tissue culture is useful to obtain commercial varieties in a short time.
Hasegawa, Masatoshi*; Sakurai, Hideyuki*; Shin, Masako*; Okamoto, Masahiko*; Ishiuchi, Shogo*; Asakawa, Isao*; Tamamoto, Tetsuo*; Ono, Tatsuya*; Oikawa, Masakazu*; Kamiya, Tomihiro; et al.
no journal, ,
no abstracts in English
-ray measurement of the neutron-rich nucleus 
CmIshii, Tetsuro; Shigematsu, Soichiro; Makii, Hiroyuki; Asai, Masato; Tsukada, Kazuaki; Toyoshima, Atsushi; Matsuda, Makoto; Makishima, Akiyasu*; Shizuma, Toshiyuki; Kaneko, Junichi*; et al.
no journal, ,
no abstracts in English
Maehara, Yushi; Nagaoka, Mika; Nihei, Hidekazu*; Fujita, Hiroki; Ono, Masako*
no journal, ,
no abstracts in English
Ono, Masako*; Noguchi, Mizuki*; Maehara, Yushi; Matsuo, Kazuki; Hirao, Moe
no journal, ,
Ono, Masako*; Noguchi, Mizuki*; Nagaoka, Mika; Maehara, Yushi; Fujita, Hiroki
no journal, ,
On March 11, 2011, a tremendous earthquake of a 9.0 magnitude occurred undersea off the northeastern coast, triggering a massive tsunami. Flooding from the tsunami caused the loss of core cooling functions, which led to the evaporation of water in the reactor pressure vessels of Units 1-3 at the Fukushima Daiichi Nuclear Power Station (FDNPS), resulting in an accident that damaged the reactor cores. After the accident, the decommissioning work is being carried out step by step, and it will now be entering the stage of taking on challenges in uncharted territory, on the way to full-scale decommissioning including retrieval of fuel debris. Radiation workers in decommissioning project who enters reactor buildings should conduct various kinds of tasks in working environment with relatively high concentration of radionuclides such as Strontium-90, Actinides, etc., is constantly present. Even if the workers wear appropriate protective equipment, intakes of radionuclides under unforeseen circumstances may result in internal exposure. Measurement of radioactive materials taken into the body in the event of an incident can be conducted by in-vivo bioassay using WBC and lung monitors, and in-vitro bioassay using analysis of feces and urine. In FDNPS, all workers who enter the controlled area are subjected to routine individual monitoring of internal exposure by WBC (for screening purposes). For alpha-emitting radionuclides such as actinides and beta-emitting radionuclides such as Strontium-90, in-vitro bioassay measurements are generally used. In case of an internal exposure event, it is necessary to establish a rapid bioassay for judgment of medical treatment and for information collections to develop a plan of action. This presentation will provide an overview of the decommissioning work at FDNPS and application of a rapid bioassay method for mixed nuclides of Pu, Am, Cm, U, and Sr.
