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Sugaya, Toshikatsu; Nakatani, Takayoshi; Sasaki, Toshihisa*; Nakamura, Yasuo*; Sakai, Akihiro; Sakamoto, Yoshiaki
JAEA-Technology 2016-036, 126 Pages, 2017/02
JAEA-Technology-2016-036.pdf:7.28MB
At the Radioactive Waste Management and Disposal Project Department Sector of Decommissioning and Radioactive Waste Management, we performed the technological study about the disposal measures of the low-level radioactive waste targeted for uranium-bearing waste and intermediate depth disposal-based waste occurring from the process of the nuclear fuel cycle.
Tsujimoto, Kazufumi; Sasa, Toshinobu; Nishihara, Kenji; Oigawa, Hiroyuki; Takano, Hideki*
Proceedings of International Conference on Physics of Fuel Cycles and Advanced Nuclear Systems; Global Developments (PHYSOR 2004) (CD-ROM), 8 Pages, 2004/04
The Japan Atomic Energy Research Institute (JAERI) is developing an Accelerator Driven System (ADS) for transmutation of nuclear waste such as minor actinide (MA) and long-lived fission product (LLFP). To study and evaluate the feasibility of ADS by physical and engineering viewpoints, the Transmutation Experimental Facility (TEF) is proposed under a framework of J-PARC (Japan Proton Accelerator Research Complex) project. The TEF consists of two facilities named as Transmutation Physics Experimental Facility (TEF-P) and ADS Target Test Facility (TEF-T). The TEF-P consists of a zero-power critical assembly which is operated with a low power proton beam to research the reactor physics and the controllability of ADS. The TEF-T is a facility for material irradiation and partial mockup of beam window which can accept a maximum 600MeV-200kW proton beam into the Pb-Bi eutectic target. The purposes, experimental items and the specifications of the facilities are described.
Iguchi, Tetsuo*; Watanabe, Kenichi*; Kawarabayashi, Jun*; Uritani, Akira*; Enokida, Yoichi*; Watanabe, Kazuo
JAERI-Tech 2004-010, 62 Pages, 2004/03
no abstracts in English
Amano, Hikaru; Onuma, Yoshikazu*
Journal of Radioanalytical and Nuclear Chemistry, 255(1), p.217 - 222, 2003/01
Times Cited Count：8 Percentile：47.46no abstracts in English
Tochiyama, Osamu*
JNC-TJ8400 2000-044, 53 Pages, 2000/02
JNC-TJ8400-2000-044.pdf:1.41MB
To estimate the polyelectrolyte effect and the effect of the heterogeneous composition of humic acids, the complex formation constants of Eu(III) and Ca(II) with Aldrich humic acid and polyacrylic acid were obtained, for Eu(10
to 10
M) by solvent extraction with TTA and TBP in xylene, for Ca (10
M) with TTA and TOPO in cyclohexane and for Ca(10
M) by using ion-selective electrode. By defining the apparent formation as 
= [MR
]/([M][R]), where [R] denotes the concentration of dissociated functional group, [M] and [MR] denote the concentration of free and bound metal ion and pcH is defined as-log[H], the values of log have been obtained at pcH 4.8 - 5.5 in 0.1 - 1.0M NaClO
and NaCl. Log of Eu-humate varied from 5.0 to 9.3 and that of Ca-humate from 2.0 to 3.4..For both humate and polyacrylate, log increased with pcH or with the degree of dissociation. The increase in the ionic strength O.1 to 1.0 M decreased the log, the decrease in log of Eu(III)-humate is 1.6, that of Eu(III), polyacrylate 0.7, that of Ca(II)-humate 1.9 and that of Ca(II)-polyacrylate 1.2. While the increase in the metal ion produced no effect on log of polyacrylate, log of humate decreased. Depending on the concentration of Eu(III), the coexistence of Ca(II) reduced log of humate by 0 to 0.8. The dependence of log of humate on the metal ion concentration suggests the coexistence of strong and weak binding sites in the hmnic acid.
Amano, Hikaru; Ueno, Takashi; Arkhipov, N.*; Paskevich, S.*; Onuma, Yoshikazu*
Proceedings of 10th International Congress of the International Radiation Protection Association (IRPA-10) (CD-ROM), 6 Pages, 2000/00
no abstracts in English
Amano, Hikaru; Matsunaga, Takeshi; Ueno, Takashi; Yanase, Nobuyuki; Nagao, Seiya
Proceedings of the 2nd ISTC/SAC Seminar "Large Scale Area Remediation", p.2_75 - 2_81, 1999/00
no abstracts in English
Mukaiyama, Takehiko; Ogawa, Toru; Mizumoto, Motoharu; Takizuka, Takakazu; Hino, Ryutaro; Oyama, Yukio
IAEA-TC-903.3, p.173 - 188, 1997/00
no abstracts in English
Mukaiyama, Takehiko
Hoshasei Haikibutsu Kenkyu, 2(1-2), p.15 - 26, 1996/02
no abstracts in English
Mukaiyama, Takehiko
Cho Hangenki Kakushu No Kankyo Dotai To Senryo Hyoka (Hoiken Kankyo Semina Shirizu, No.23), 0, p.142 - 149, 1996/00
no abstracts in English
Amano, Hikaru; Matsunaga, Takeshi; Ueno, Takashi; Onuma, Yoshikazu*; Watanabe, Miki*; Yanase, Nobuyuki; Nagao, Seiya; Sukhoruchkin, A. K.*
Proceedings of 5th International Scientific and Technical Conference on the Problems of Liquidation of Chernobyl Accident Consequences, P. 74, 1996/00
no abstracts in English
Mukaiyama, Takehiko
Genshiryoku Shisutemu Nyusu, 6(1), p.5 - 14, 1995/06
no abstracts in English
Osugi, Toshitaka; Takano, Hideki; Ogawa, Toru; ; ; *; *; *; *
Global 1995, Int. Conf. on Evaluation of Emerging Nuclear Fuel Cycle Systems,Vol. 1, 0, p.181 - 189, 1995/00
no abstracts in English
Mukaiyama, Takehiko
Nippon Genshiryoku Gakkai-Shi, 37(3), p.159 - 162, 1995/00
no abstracts in English
