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Journal Articles

Swift heavy ion irradiation effects in nanocrystalline gold

Chimi, Yasuhiro; Iwase, Akihiro*; Ishikawa, Norito; Kobiyama, Mamoru*; Inami, Takashi*; Kambara, Tadashi*; Okuda, Shigeo*

Nuclear Instruments and Methods in Physics Research B, 245(1), p.171 - 175, 2006/04

 Times Cited Count:13 Percentile:30.44(Instruments & Instrumentation)

We have studied effects of irradiation with energetic particles on defect accumulation in nanocrystalline gold (nano-Au). The specimens of nano-Au foil (3-5 $$mu$$m thickness) with various grain sizes (23-156 nm) are prepared by the gas deposition method and subsequent thermal annealings. Irradiations of the specimens with 60-MeV $$^{12}$$C ions, 3.54-GeV $$^{136}$$Xe ions or 2.0-MeV electrons are performed at low temperature. The defect accumulation behavior is observed by measuring the electrical resistivity change during irradiation. Through an analysis of defect accumulation behavior, cross-sections for defect production, $$sigma$$$$_{d}$$, and annihilation, $$sigma$$$$_{r}$$, in nano-Au increase monotonically as the grain size decreases. These results are considered to be caused by the existence of a large volume fraction of the regions near grain boundaries in nano-Au where the threshold energy for atomic displacements, E$$_{d}$$, becomes lower than in polycrystalline gold. The possibility of electronic excitation effects in nano-Au is also discussed.

Journal Articles

Boundary structure of Mo/Si multilayers for soft X-ray mirrors

Ishino, Masahiko; Yoda, Osamu; Haishi, Yasuyuki*; Arimoto, Fumiko*; Takeda, Mitsuhiro*; Watanabe, Seiichi*; Onuki, Somei*; Abe, Hiroaki

Japanese Journal of Applied Physics, Part 1, 41(5A), p.3052 - 3056, 2002/05

 Times Cited Count:10 Percentile:57.53(Physics, Applied)

no abstracts in English

Journal Articles

The Effect of oxygen impurity on the characteristics of uranium and uranium-plutonium mixed nitride fuels

Arai, Yasuo; *; Omichi, Toshihiko

Journal of Nuclear Materials, 202, p.70 - 78, 1993/00

 Times Cited Count:25 Percentile:10.41(Materials Science, Multidisciplinary)

no abstracts in English

Journal Articles

Internal release of metallic fission products in (Th,U)O$$_{2}$$ coated particle fuel

Akabori, Mitsuo; Fukuda, Kosaku

Journal of Nuclear Materials, 183, p.70 - 75, 1991/00

 Times Cited Count:5 Percentile:44.86(Materials Science, Multidisciplinary)

no abstracts in English

Journal Articles

Sintering behavior of sol-gel ThO$$_{2}$$ microspheres

;

Journal of Nuclear Materials, 144(3), p.244 - 251, 1987/03

 Times Cited Count:8 Percentile:35.69(Materials Science, Multidisciplinary)

no abstracts in English

Journal Articles

Effects of grain sizes on the lattice parameter changes in ThO$$_{2}$$ fuel kernels irradiated by fission fragments

; Akabori, Mitsuo; Shiba, Koreyuki

Funtai Oyobi Fummatsu Yakin, 30(5), p.178 - 183, 1983/00

no abstracts in English

Journal Articles

Lattice parameter change in ThO$$_{2}$$ fuel kernels irradiated by fission fragments

; Akabori, Mitsuo; Shiba, Koreyuki

Funtai Oyobi Fummatsu Yakin, 29(5), p.187 - 190, 1982/00

no abstracts in English

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