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JAEA Reports

Stabilization of MOX dissolving solution at STACY

Kobayashi, Fuyumi; Sumiya, Masato; Kida, Takashi; Kokusen, Junya; Uchida, Shoji; Kaminaga, Jota; Oki, Keiichi; Fukaya, Hiroyuki; Sono, Hiroki

JAEA-Technology 2016-025, 42 Pages, 2016/11

JAEA-Technology-2016-025.pdf:17.88MB

A preliminary test on MOX fuel dissolution for the STACY critical experiments had been conducted in 2000 through 2003 at Nuclear Science Research Institute of JAEA. Accordingly, the uranyl / plutonium nitrate solution should be reconverted into oxide powder to store the fuel for a long period. For this storage, the moisture content in the oxide powder should be controlled from the viewpoint of criticality safety. The stabilization of uranium / plutonium solution was carried out under a precipitation process using ammonia or oxalic acid solution, and a calcination process using a sintering furnace. As a result of the stabilization operation, recovery rate was 95.6% for uranium and 95.0% for plutonium. Further, the recovered oxide powder was calcined again in nitrogen atmosphere and sealed immediately with a plastic bag to keep its moisture content low and to prevent from reabsorbing atmospheric moisture.

Journal Articles

Development of a moist atmospheric dynamic model for nuclear emergency response

Furuno, Akiko; Yamazawa, Hiromi

Mathematics and Computation, Reactor Physics and Environmental Analysis in Nuclear Applications, 2, p.1699 - 1704, 1999/00

no abstracts in English

Journal Articles

Moisture imaging of a camphor tree by neutron beam

Nakanishi, Tomoko*; *; *; Matsubayashi, Masahito

Radioisotopes, 47(5), p.387 - 391, 1998/05

no abstracts in English

Journal Articles

Three dimensional imaging of moisture in wood disk by neutron beam during drying process

Nakanishi, Tomoko*; *; *; *; Matsubayashi, Masahito

Holzforschung, 52(6), p.673 - 676, 1998/00

no abstracts in English

Journal Articles

Experimental verification and analysis of neutron streaming effect through void holes for control rod insertion in HTTR

Akino, Fujiyoshi; Takeuchi, Motoyoshi; Ono, Toshihiko; Kaneko, Yoshihiko

Journal of Nuclear Science and Technology, 34(2), p.185 - 192, 1997/02

 Times Cited Count:0 Percentile:0.01(Nuclear Science & Technology)

no abstracts in English

Journal Articles

Measurement of vaccuum occluded gases released from uranium-plutonium mixed carbide and uranium carbide fuels

; ;

Journal of Nuclear Science and Technology, 25(5), p.456 - 463, 1988/05

 Times Cited Count:4 Percentile:47.49(Nuclear Science & Technology)

no abstracts in English

Journal Articles

Radiation chemical reactions in NO$$_{x}$$ and SO$$_{2}$$ removals from flue gas

;

Radiation Physics and Chemistry, 24(1), p.145 - 165, 1984/00

no abstracts in English

Oral presentation

Accelerator based BNCT using solid Li target at OIST

Matsumoto, Hiroshi*; Suzuki, Fumiko*; Sugawara, Hirotaka*; Yoshioka, Masakazu*; Higashi, Yasuo*; Matsumoto, Noriyuki*; Hasegawa, Kazuo; Kondo, Yasuhiro; Uchida, Kazuhide*; Kurokawa, Shinichi*

no journal, , 

Oral presentation

Investigation on the calculation method of sodium void reactivity for fast reactor cores with sodium plenum

Sugino, Kazuteru; Oki, Shigeo

no journal, , 

no abstracts in English

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