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Maeda, Makoto; Furutaka, Kazuyoshi; Kureta, Masatoshi; Ozu, Akira; Tobita, Hiroshi; Komeda, Masao; Hattori, Kentaro
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no abstracts in English
Tojo, Hiroshi; Hatae, Takaki; Sakuma, Takeshi; Hamano, Takashi; Itami, Kiyoshi
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no abstracts in English
Nakajima, Motoki
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Reduced activation ferritic/martensitic steel, F82H is the most promising candidate structural material for fusion blanket. Water-cooled ceramic breeder blanket is an attractive concept for its compactness and its compatibility with the technologies in conventional pressurized water reactor (PWR). For blanket application, the structural material is required to be as thin as possible for tritium breeding. On the other hand, it is also required the pressure tightness which could withstand internal pressure of 15 MPa. Therefore it is necessary to determine corrosion allowance for cooling tubes precisely. This work reports corrosion properties of F82H in high temperature pressurized water. Moreover, the effects of water flow on corrosion properties were investigated using rotating disk specimen in autoclave.
Maruyama, Takahito; Noguchi, Yuto; Ueno, Kenichi; Takeda, Nobukazu; Kakudate, Satoshi
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no abstracts in English
Saito, Makiko; Anzai, Katsunori; Maruyama, Takahito; Noguchi, Yuto; Takeda, Nobukazu; Kakudate, Satoshi
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no abstracts in English
Wan, T.; Kogawa, Hiroyuki; Obayashi, Hironari; Iwamoto, Hiroki; Takei, Hayanori; Sasa, Toshinobu; Maekawa, Fujio
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Tada, Kenichi
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In JAEA, the nuclear data processing system FRENDY (FRom Evaluated Nuclear Data librarY to any application) has been developed. In this presentation, the overview and verification of FRENDY is described.
Doi, Reisuke; Uchikoshi, Keiji*; Beppu, Hikari*
no journal, ,
In order to determine the solubility-controlling solid of Se under reducing conditions, solubility experiments of Se were performed from oversaturation direction in the presence of Fe under reducing conditions. The Se concentration as a function of equilibration periods suggested the attainment of equilibrium in our system within a month. Only FeSe
was detected as the Se solid phase by XRD analysis of the solid samples from the equilibrated suspensions. Interpretations using the specific ion interaction theory model showed that the relationship between Eh and the measured concentrations of Se and Fe could be interpreted well by the dissolution reaction of FeSe. Therefore, we conclude that FeSe is most likely the solubility-controlling solid of Se under these conditions.
Yamamoto, Keisuke; Aoyama, Yoshio
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Suzuki, Tomoya; Morita, Keisuke; Sasaki, Yuji; Matsumura, Tatsuro
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Iwata, Hajime; Kitamura, Akira
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The solubility of Nb was measured using oversaturation and undersaturation method. Compared with the values evaluated using JAEA-TDB, in the OS method a similar solubility was observed, and the measured values in the US method were around three orders magnitude below the evaluated values. It suggests that the solubility limiting solid differ between OS and US method.
Ozeki, Hidemasa; Isono, Takaaki; Kawano, Katsumi; Saito, Toru; Kawasaki, Tsutomu; Nishino, Katsumi; Okuno, Kiyoshi; Kido, Shuichi*; Semba, Tomoyuki*; Suzuki, Yozo*; et al.
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no abstracts in English
Shimizu, Koki; Koyama, Hayato; Aoyama, Yoshio
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no abstracts in English
Sato, Junya; Suzuki, Shinji; Sakakibara, Tetsuro; Meguro, Yoshihiro; Nakazawa, Osamu
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no abstracts in English
Kojima, Kensuke; Okumura, Keisuke
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The MOSRA system has been developing to improve the applicability of the neutronic characteristic analyses. The cell calculation module MOSRA-SRAC is a core module of MOSRA, and applicability tests for realistic problems are required. As a test, we joined the benchmark "Burnup Credit Criticality Benchmark Phase IIIC". The benchmark requested the neutronic characteristics for a BWR fuel assembly with gadolinium, which had been used in the TEPCO's Fukushima Daiichi Nuclear Power Station. Because of a restriction of MOSRA-SRAC, the geometry was partially homogenized. To verify the module's applicability including the homogenization effects, the multiplication factor and the nuclide compositions were compared with the well-validated code MVP-BURN. As the results, the applicability of MSORA-SRAC for the assembly was verified. Additionally, it was also shown that the homogenization effects were smaller than the difference due to the calculation methods.
Yoshida, Masafumi; Hanada, Masaya; Kojima, Atsushi; Kashiwagi, Mieko; Tobari, Hiroyuki; Hiratsuka, Junichi; Akino, Noboru; Endo, Yasuei; Komata, Masao; Mogaki, Kazuhiko; et al.
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Mizutani, Yoshitaka*; Honda, Masaki*; Nishi, Tsuyoshi*; Hayashi, Hirokazu
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Sudo, Ayako
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Morimoto, Kenji; Isozaki, Naohiko; Yasuo, Kiyoshi
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no abstracts in English
Natsume, Kyohei; Yoshida, Kiyoshi; Kizu, Kaname; Koide, Yoshihiko
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no abstracts in English