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Sakurai, Takeshi; Fukushima, Masahiro
JAEA-Data/Code 2026-001, 235 Pages, 2026/06
JAEA-Data-Code-2026-001.pdf:16.46MB
Experimental data obtained in the Fast Critical Assembly (FCA) simulating a High Conversion Light Water Reactor (HCLWR) were evaluated for the criticality of assemblies XV series in the second phase of FCA-HCLWR experiments, primarily using plutonium fuel. Analysis was performed using the nuclear data libraries JENDL-4.0 and JENDL-5 and the Monte Carlo code MVP3, which calculates neutron transport using the continuous energy method. In the evaluation of criticality, a detailed uncertainty assessment was performed, taking into account the effects of uncertainties in the weight and composition of the uranium and plutonium fuel plates and simulated material plates such as moderator in the FCA. The analysis involved detailed simulations of the fuel and lattice tube structures in the FCA. The calculation results for the effective multiplication factor overestimated the experimental results by 0.4% to 0.8% using both JENDL-4.0 and JENDL-5.
Niwa, Masakazu; Ueki, Tadamasa*; Hoshi, Hiroyuki*; Sugisaki, Yuichi*
JAEA-Research 2020-003, 33 Pages, 2020/07
JAEA-Research-2020-003.pdf:5.69MB
Ages of volcanic rocks are helpful information to understand the impact of volcanism concerning a site characterization and a safety assessment for geological disposal. In this study, mineralogical and geochemical data of altered volcanic rocks were collected using a polarizing microscope, X-ray diffractometer, X-ray fluorescence spectrometer, X-ray analytical microscope, and electron probe microanalyzer, to select targets suitable for reliable K-Ar dating. In addition, sample preparation procedures such as freeze-thawing and HCl treatment were examined to concentrate unaltered plagioclase which is one of major phenocrysts in volcanic rocks. These data and procedures were compiled in this report.
-dodecane by methylimino-dioctylacetamide (MIDOA))Sasaki, Yuji
Separation Science and Technology, 55(4), p.708 - 715, 2020/00
Times Cited Count：7 Percentile：23.70(Chemistry, Multidisciplinary)Methylimino-di-n-octylacetamide (MIDOA) was used to extract 57 metals from HCl into -dodecane. MIDOA is a tridentate ligand with one N donor and two carbonyl O donors and can extract soft acid metals and metal oxonium anions. In the present work, Fe(III), Zr(IV), Ga(III), Mo(VI), Tc(VII), Pd(II), Cd(II), In(III), Sn(IV), W(VI), Re(VII), Os(III), Ir(III), Pt(IV), Au(III), Hg(II), Bi(III), and U(VI) had distribution ratios above 10 when using 0.1 M MIDOA/n-dodecane and 3 M HCl. The amount of metal ion (Mo(VI), Tc(VII), Re(VII), Pd(II), Pt(IV), and Au(III)) extracted from HCl was greater than that obtained using HNO
.
Watanabe, Daisuke*; Che, D.-C.*; Fukuyama, Tetsuya*; Hashinokuchi, Michihiro*; Teraoka, Yuden; Kasai, Toshio*
Review of Scientific Instruments, 76(5), p.055108_1 - 055108_5, 2005/05
Times Cited Count：6 Percentile：32.42(Instruments & Instrumentation)A molecular beam technique for generating an intense pulsed hyperthermal molecular beam (HTMB) was developed. The beam source consists of a pulse valve, a cooling-water bottle that protectes the pulse valve from heat transfer of a high temperature nozzle, and the nozzle with a heater. The pulsed HTMB of HCl was practically generated and characterized by means of (2+1) resonance-enhanced multiphoton ionization and ion time-of-flight techniques.
solutionsHaba, Hiromitsu; Tsukada, Kazuaki; Asai, Masato; Goto, Shinichi*; Toyoshima, Atsushi; Nishinaka, Ichiro; Akiyama, Kazuhiko; Hirata, Masaru; Ichikawa, Shinichi; Nagame, Yuichiro; et al.
Journal of Nuclear and Radiochemical Sciences, 3(1), p.143 - 146, 2002/06
We have investigated the sorption behavior of element 104 rutherfordium (Rf) on an anion exchange resin from HCl and HNO solutions. In the HCl experiments, the distribution coefficients of Rf increase with an increase of HCl concentration from 7.0 M to 11.5 M, indicating that anionic species such as [Rf(OH)Cl
]
or [RfCl
] are formed. This sorption behavior of Rf is typical of the group-4 elements Zr and Hf, and is quite different from that of the pseudo-homologue Th. It is also noted that the distribution coefficients decrease in the order Rf, Zr, Hf at 9.0 M HCl, which is consistent with the expected order of ionic radii. On the other hand, Rf appears to behave like Zr and Hf in 8 M HNO not like Pu and Th.
Yokoyama, Atsushi; Takayanagi, Toshiyuki
Chemical Physics Letters, 307(1-2), p.48 - 54, 1999/00
Times Cited Count：9 Percentile：27.45(Chemistry, Physical)no abstracts in English
Watanabe, Satoshi; Hashimoto, Kazuyuki
Journal of Radioanalytical and Nuclear Chemistry, 239(2), p.391 - 395, 1999/00
Times Cited Count：1 Percentile：12.55(Chemistry, Analytical)no abstracts in English
Suzuki, Shinichi; ; Tachimori, Shoichi;
Solvent Extr. Res. Dev., Jpn., 6, p.72 - 79, 1999/00
no abstracts in English
in the ground electronic stateYokoyama, Keiichi; ;
Journal of Chemical Physics, 102(20), p.7902 - 7909, 1995/05
Times Cited Count：18 Percentile：55.71(Chemistry, Physical)no abstracts in English
Hirota, Koichi; Tokunaga, Okihiro; Miyata, Teijiro; Sato, Shoichi; ; ; ; ; ; ; et al.
Radiation Physics and Chemistry, 46(4-6), p.1089 - 1092, 1995/00
Times Cited Count：10 Percentile：68.23(Chemistry, Physical)no abstracts in English
CHClF, CBrFCHBrF, and CBrClFCBrF in a molecular beam; Yokoyama, Keiichi;
Journal of Chemical Physics, 101(12), p.10602 - 10608, 1994/12
Times Cited Count：8 Percentile：33.00(Chemistry, Physical)no abstracts in English
; Yokoyama, Keiichi;
Journal of Chemical Physics, 100(9), p.6487 - 6491, 1994/05
Times Cited Count：31 Percentile：73.44(Chemistry, Physical)no abstracts in English
Iwamura, Takamichi; Watanabe, Hironori; Okubo, Tsutomu; Araya, Fumimasa; Murao, Yoshio
Journal of Nuclear Science and Technology, 30(5), p.413 - 424, 1993/05
Times Cited Count：2 Percentile：29.29(Nuclear Science & Technology)no abstracts in English
Araya, Fumimasa; Iwamura, Takamichi; Okubo, Tsutomu; ; Murao, Yoshio
Nihon Genshiryoku Gakkai-Shi, 34(8), p.776 - 786, 1992/08
Times Cited Count：0 Percentile：0.00(Nuclear Science & Technology)no abstracts in English
; Okumura, Keisuke;
JAERI-M 92-067, 35 Pages, 1992/05
no abstracts in English
Iwamura, Takamichi; Watanabe, Hironori; Araya, Fumimasa; Okubo, Tsutomu; Murao, Yoshio
JAERI-M 92-050, 46 Pages, 1992/03
no abstracts in English
Iwamura, Takamichi; Watanabe, Hironori; Okubo, Tsutomu; Araya, Fumimasa; Murao, Yoshio
JAERI-M 92-033, 66 Pages, 1992/03
no abstracts in English
Iwamura, Takamichi; Okubo, Tsutomu; Araya, Fumimasa; Murao, Yoshio
Subchannel Analysis in Nuclear Reactors, p.281 - 301, 1992/00
no abstracts in English
A.Mengoni*; Shirai, Toshizo
Physical Review A, 44(11), p.7258 - 7268, 1991/12
Times Cited Count：9 Percentile：52.08(Optics)no abstracts in English
-UO fuel assemblyC-S.Gil*; Okumura, Keisuke;
JAERI-M 91-200, 61 Pages, 1991/11
no abstracts in English
