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Oral presentation

New cross-over project, "New engineering to control materials behavior at high energy and high fluence irradiation, 4; Development of experimental simulation technique using ion accelerator

Sataka, Masao; Ishikawa, Norito; Chimi, Yasuhiro; Okubo, Nariaki; Sonoda, Takeshi*; Matsumura, Sho*; Yasuda, Kazuhiro*; Yasunaga, Kazufumi*; Shiiyama, Kenichi*; Abe, Hiroaki*; et al.

no journal, , 

no abstracts in English

Oral presentation

New cross-over project, "New engineering to control materials behavior at high energy and high fluence irradiation", 5; Microstructure observation and analysis of irradiated ceramic compounds with the fluorite crystal structure

Matsumura, Sho*; Yasuda, Kazuhiro*; Yasunaga, Kazufumi*; Shiiyama, Kenichi*; Sonoda, Takeshi*; Abe, Hiroaki*; Iwai, Takeo*; Sataka, Masao; Ishikawa, Norito; Chimi, Yasuhiro; et al.

no journal, , 

no abstracts in English

Oral presentation

Recovery induced by high-density electronic excitations in CeO$$_{2}$$ pre-implanted with Xe ions

Yasunaga, Kazufumi*; Sonoda, Takeshi*; Yasuda, Kazuhiro*; Shiiyama, Kenichi*; Matsumura, Sho*; Sataka, Masao; Ishikawa, Norito; Chimi, Yasuhiro; Okubo, Nariaki; Iwase, Akihiro*; et al.

no journal, , 

Irradiation experiments were performed for CeO$$_{2}$$ using ion accelerators. CeO$$_{2}$$ were first pre-implanted with 2at.% Xe and furthermore heavily irradiated with high-energy heavy ions, and as a result restructuring of dislocation has been found.

Oral presentation

New cross-over project study, 6; High density electronic excitation effects in Xe-ions-implanted fluorite ceramics as simulations of high burnup nuclear fuels

Sonoda, Takeshi*; Ishikawa, Norito; Sataka, Masao; Okubo, Nariaki; Yasunaga, Kazufumi*; Yasuda, Kazuhiro*; Shiiyama, Kenichi*; Matsumura, Sho*; Iwase, Akihiro*; Kinoshita, Motoyasu*

no journal, , 

In order to elucidate the radiation damage in nuclear fuel, simulation material CeO$$_{2}$$ has been irradiated with ions and its damage has been investigated. It is found that by 210MeV Xe irradiation subdivision of crystals is promoted, and Xe-preimplantation accelerates it.

Oral presentation

New cross-over project study, 2; Ion irradiation examination on UO$$_{2}$$ and CeO$$_{2}$$ for clarification of grain sub-division mechanism in high burnup fuels

Sonoda, Takeshi*; Ishikawa, Norito; Sataka, Masao; Okubo, Nariaki; Yasunaga, Kazufumi*; Yasuda, Kazuhiro*; Shiiyama, Kenichi*; Matsumura, Sho*; Iwase, Akihiro*; Kinoshita, Motoyasu

no journal, , 

Ion irradiation was performed for CeO$$_{2}$$ and UO$$_{2}$$. Same kind of microstructure change is observed for both of the oxide materials.

Oral presentation

New cross over project study, 3; Effect of Xe accumulation in CeO$$_{2}$$ irradiated with swift heavy ions

Yasunaga, Kazufumi*; Sonoda, Takeshi*; Yasuda, Kazuhiro*; Shiiyama, Kenichi*; Matsumura, Sho*; Sataka, Masao; Ishikawa, Norito; Chimi, Yasuhiro; Kinoshita, Motoyasu

no journal, , 

In order to study the elementary damage process of high burnup structure of light water reactor, ion implantation and ion irradiation were performed for CeO$$_{2}$$. It is suggested from the observation of electron microscopy that Xe gas suppress movement of dislocation in CeO$$_{2}$$.

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