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Ozawa, Tatsuya; Miyamoto, Yasuaki; Suto, Makoto; Aoyama, Yoshio; Yamaguchi, Hiromi
JAEA-Technology 2006-050, 88 Pages, 2006/11
JAEA-Technology-2006-050.pdf:14.49MB
Melting treatment is one of the volume reduction processes for nonflammable radioactive solid wastes. Though it is applied to the volume reduction process for the low-level radioactive wastes generated at nuclear power plants, it still has technical problems to be solved. The results of our previous investigation of existing melting treatment facilities and conceptual design of the melting treatment system for transuranic waste, made these technical problems clear. To solve them, we have been carrying out the experiments of melting treatment of the simulated transuranic wastes which are nonflammable solid wastes. This report describes the progress in investigating these problems, as well as the results of recent experiments.
Nakao, Makoto*; Hori, Junichi*; Ochiai, Kentaro; Kubota, Naoyoshi; Sato, Satoshi; Yamauchi, Michinori; Ishioka, Noriko; Suto, Hiroyuki*; Nishitani, Takeo
JAEA-Research 2006-071, 37 Pages, 2006/11
JAEA-Research-2006-071.pdf:6.72MB
In the design of IFMIF, long-term operation with total facility availability of at least 70 % is required. However, activation of structural materials by deuteron beam limits maintenance, which causes lower facility availability. Thus it is essential to prepare deuteron-induced activation cross section database and to select low activation materials based on it. In this work, we measured deuteron-induced activation cross sections of aluminum, vanadium, chromium, manganese, iron, nickel, copper, tantalum, tungsten and gold. The measured cross sections were compared with other experimental data and calculations. Deuteron-induced activities of nuclides produced in SS316 and F82H alloys used as the accelerator structural material were also measured to validate the measured cross sections comprehensively. It demonstrated that the measured activities of almost all the nuclides were in agreement with evaluated ones based on the measured cross sections within error.
Sudo, Makoto; Miyamoto, Yasuaki; Fukumoto, Masahiro; Suto, Osamu
Journal of Physics and Chemistry of Solids, 66(2-4), p.608 - 611, 2005/00
Times Cited Count：6 Percentile：30.07(Chemistry, Multidisciplinary)None
Morimoto, Makoto; Suto, Masayoshi; Ito, Yoshio; Ito, Hideaki; Aoki, Hiroshi; Odo, Toshihiro
JNC TN9430 2004-002, 60 Pages, 2004/03
JNC-TN9430-2004-002.pdf:2.28MB
This paper describes the result of the sodium purity measurement test on MK-III function tests. This test meant cold traps caught impurity which was carried into the primary and the secondary cooling system by MK-III modification work of the heat transport system, and the amount of impurity was evaluated by plugging temperature before and after the primary and secondary purification operation. Then the following two tests were practiced. Test number and name was shown. (1)SKS-122 Measurement test of purity on primary sodium purification system (2)SKS-211 Measurement test of purity on secondary sodium purification system As the cold traps could catch impurity which made with MK-III modificatlon work, impurity concentrations of sodium in the both of systems were generally within the reference limits of JOY0, while the function tests took in practice for Mk-III. As a result, the amount of impurity Oxygen caught by cold traps calculated approximately 400g in the primary sodium cooling system and approximately 1100g in the secondary one.
Takai, Masakazu; Sudo, Makoto; Nakazawa, Osamu; Fukumoto, Masahiro; Suto, Osamu
Journal of Physics and Chemistry of Solids, 66, p.694 - 696, 2004/00
Times Cited Count：8 Percentile：33.74(Chemistry, Multidisciplinary)None
Miyamoto, Yasuaki; Yamanaka, Tomohiro*; Aoyama, Makoto; Takahashi, Kuniaki; Suto, Osamu
JNC TN8400 2003-044, 127 Pages, 2003/03
JNC-TN8400-2003-044.pdf:19.07MB
It examined for the uranium system metal wastes which can be expected a high decontamination performance by applying melt refining decontamination technology, and the decontamination performance by using a refractories melting furnace and a cold crucible induction melting furnace was confirmed. Moreover, evaluation about technical applicability, such as engineering characteristics by the examination using an engineering scale melting furnace, was carried out.
Aoyama, Makoto; Miyamoto, Yasuaki; Suto, Osamu
Abstract, PB54, (pb54), 0 Pages, 2003/00
None
Takai, Masakazu; Aoyama, Makoto; Nakazawa, Osamu; Suto, Osamu
Proceedings of 11th International IUPAC Conference on High Temperature Materials Chemistry (HTMC-11), P. 215, 2003/00
None
Takai, Masakazu; Sudo, Makoto; Nakazawa, Osamu; Suto, Osamu
Proceedings of 11th International IUPAC Conference on High Temperature Materials Chemistry (HTMC-11), (pb77), 215 Pages, 2003/00
None
Tamaoki, Tetsuo*; Yamamoto, Hiroki*; Sato, Masuo*; Yoshida, Megumi*; Kaneko, Tomoko*; Terunuma, Seiichi; Takatsuto, Hiroshi; Morimoto, Makoto
Nihon Genshiryoku Gakkai-Shi, 34(7), p.665 - 677, 1992/00
Times Cited Count：0 Percentile：0.01(Nuclear Science & Technology)None
Suto, Osamu; Hasegawa, Makoto; ; ; Sasao, Nobuyuki
'92 Third Int.Workshop onSeparation Phenomena in, ,
None
Suto, Osamu; Hasegawa, Makoto; ; ; Sasao, Nobuyuki;
3rd International Workshop on Separation Phenomena, ,
Kubota, Naoyoshi; Nakao, Makoto*; Ochiai, Kentaro; Nishitani, Takeo; Suto, Hiroyuki*; Ishioka, Noriko
no journal, ,
no abstracts in English
Ozawa, Tatsuya; Miyamoto, Yasuaki; Suto, Makoto; Aoyama, Yoshio; Yamaguchi, Hiromi; Kuchiki, Norikazu*
no journal, ,
no abstracts in English
