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Tokuhisa, Atsushi*; Arai, Junya*; Jochi, Yasumasa*; Ono, Yoshiyuki*; Kameyama, Toyohisa*; Yamamoto, Keiji*; Hatanaka, Masayuki*; Gerofi, B.*; Shimada, Akio*; Kurokawa, Motoyoshi*; et al.
Journal of Synchrotron Radiation, 20(6), p.899 - 904, 2013/11
Times Cited Count：5 Percentile：29.09(Instruments & Instrumentation)
collisions at 
= 200 and 62.4 GeVAdare, A.*; Afanasiev, S.*; Aidala, C.*; Ajitanand, N. N.*; Akiba, Yasuyuki*; Al-Bataineh, H.*; Alexander, J.*; Aoki, Kazuya*; Aphecetche, L.*; Armendariz, R.*; et al.
Physical Review C, 83(6), p.064903_1 - 064903_29, 2011/06
Times Cited Count：184 Percentile：99.45(Physics, Nuclear)Transverse momentum distributions and yields for 
, and 
in collisions at = 200 and 62.4 GeV at midrapidity are measured by the PHENIX experiment at the RHIC. We present the inverse slope parameter, mean transverse momentum, and yield per unit rapidity at each energy, and compare them to other measurements at different collisions. We also present the scaling properties such as 
and 
scaling and discuss the mechanism of the particle production in collisions. The measured spectra are compared to next-to-leading order perturbative QCD calculations.
and Au+Au collisions at 
= 200 GeVAdare, A.*; Afanasiev, S.*; Aidala, C.*; Ajitanand, N. N.*; Akiba, Yasuyuki*; Al-Bataineh, H.*; Alexander, J.*; Aoki, Kazuya*; Aphecetche, L.*; Aramaki, Y.*; et al.
Physical Review C, 83(4), p.044912_1 - 044912_16, 2011/04
Times Cited Count：9 Percentile：49.6(Physics, Nuclear)Measurements of electrons from the decay of open-heavy-flavor mesons have shown that the yields are suppressed in Au+Au collisions compared to expectations from binary-scaled collisions. Here we extend these studies to two particle correlations where one particle is an electron from the decay of a heavy flavor meson and the other is a charged hadron from either the decay of the heavy meson or from jet fragmentation. These measurements provide more detailed information about the interaction between heavy quarks and the quark-gluon matter. We find the away-side-jet shape and yield to be modified in Au+Au collisions compared to collisions.
Iijima, Kazuki; Tomura, Tsutomu*; Shoji, Yoshiyuki*
Applied Clay Science, 49(3), p.262 - 268, 2010/06
Times Cited Count：40 Percentile：72.54(Chemistry, Physical)Sorption and desorption behavior of Cs onto montmorillonite colloids was investigated. The ion exchange and surface complexation model can successfully reproduce the sorption and desorption behavior of Cs. Conditioning montmorillonite in higher Cs concentration than 0.005M causes decrease of interlayer distance which may lead to fixation of Cs in the interlayer. Sorption reversibility of Cs on montmorillonite colloids can be expected in this study due to lower Cs concentration than 0.0001M.
Iijima, Kazuki; Shoji, Yoshiyuki*; Tomura, Tsutomu*
Radiochimica Acta, 96(9-11), p.721 - 730, 2008/00
Times Cited Count：10 Percentile：55.82(Chemistry, Inorganic & Nuclear)Distribution coefficients of Am onto bentonite colloid were evaluated under weak basic and low ionic strength conditions, in taking the influence of Am colloid into account. The obtained values are larger than those obtained for larger montmorillonite particles in literatures. It is attributed to one order of magnitude higher reactive site density of the bentonite colloid. Applicability of a relatively simple and generalized mechanistic sorption model to the bentonite colloid is also discussed.
Tomita, Yutaka; Morihira, Masayuki; Tamaki, Yoshihisa*; Nishimura, Kazuhisa*; Shoji, Shuichi*; Kihara, Yoshiyuki; Kase, Takeshi; Koizumi, Tsutomu
JAEA-Research 2006-088, 95 Pages, 2007/01
JAEA-Research-2006-088.pdf:23.02MB
JAEA has developed sphere-pac fuels in the feasibility study on commercialized FBR cycle systems as one of the candidates for low decontamination TRU fuels. Optimization of the fabrication condition for coarse spheres, development of an improved external gelation process, and examination of peculiar problems for the low decontamination fuel were carried out in Phase II. The results are shown as follows. (1) Fabrication condition of coarse spheres was optimized. (2) Feasibility of the improved external gelation process was confirmed. (3) Rare earth elements did not bring any problem for the characteristic of spheres and fabrication condition. (4) Radiation resistant data of the feed solution was acquired. Results of tests show the feasibility of the external gelation process for the low decontamination TRU fuel microsphere fabrication.
Shimomura, Yasuo; Tsunematsu, Toshihide; Yamamoto, Shin; Maruyama, So; Mizoguchi, Tadanori*; Takahashi, Yoshikazu; Yoshida, Kiyoshi; Kitamura, Kazunori*; Ioki, Kimihiro*; Inoue, Takashi; et al.
Purazuma, Kaku Yugo Gakkai-Shi, 78(Suppl.), 224 Pages, 2002/01
no abstracts in English
Iijima, Kazuki; Shoji, Yoshiyuki; Tomura, Tsutomu*
no journal, ,
Sorption behavior of Am onto bentonite colloid was investigated. The obtained distribution coefficients were larger than those evaluated by the calculation in which ion exchange and surface complexation reactions were assumed. It seems to be due to the higher site density of bentonite colloid for surface complexation compared with bulk bentonite.
Iijima, Kazuki; Shoji, Yoshiyuki; Tomura, Tsutomu*
no journal, ,
Sorption site density of bentonite was investigated by acid titration. As a result, bentonite colloid is considered to have higher sorption site density than that of larger bentonite particle. Thus the high sorption site density, which has been supposed to lead to the large distribution coefficient of Am onto the bentonite colloid in the previous presentation, is experimentally proved.
Iijima, Kazuki; Shoji, Yoshiyuki; Tomura, Tsutomu*
no journal, ,
Sorption behavior of Am onto bentonite colloid was investigated. Distribution coefficient of Am was evaluated taking account for the existence of Am colloid. Obtained values were larger than those obtained with larger bentonite particles included in the JNC-SDB. In the acid-base titration, bentonite colloid shows larger edge site density than larger bentonite particles. In the calculation by sorption model assuming ion exchange and surface complexation, similar distribution coefficient was obtained at pH 8 with this edge site density. Based on these results, it is considered that larger distribution coefficient of bentonite colloid is due to the higher edge site density, which is dominant for the Am sorption.
Isomae, Hidemi; Nakamura, Hironobu; Matsumoto, Masaki; Kato, Yoshiyuki; Nakamichi, Hideo; Koiso, Katsuya*; Shoji, Kaoru*
no journal, ,
Ring monitor by glass dosimeter was designed and applied to the radiation management for glove box operation. The radiation management method and the irradiation test results are introduced in this report.
Tamura, Ken; Shuji, Yoshiyuki; Hirano, Hiroshi*; Tachihara, Joji; Ono, Yosuke; Shoji, Hiroyuki*; Kawasaki, Takashi
no journal, ,
no abstracts in English
小野 洋輔; 周治 愛之; 平野 宏志; 立原 丈二; 庄司 博行; 田村 健
南 明則*
JP, 2022-000568 Patent licensing information
【課題】全面マスク内で対象物を保持する保持装置において、全面マスクの気密性の維持と、使用者の視界の確保とを両立する技術を提供する。 【解決手段】保持装置(10)は、磁力によって互いに引き合う第1磁性体(11)及び第2磁性体(12)と、対象物を着脱可能に保持する保持部(15)と、第2磁性体(12)から保持部(15)を吊り下げる吊下部(16)とを備える。
