Alpha-irradiation damage in CeO2, UO2and PuO2
作者:
W.J. Weber,
期刊:
Radiation Effects
(Taylor Available online 1984)
卷期:
Volume 83,
issue 1-2
页码: 145-156
ISSN:0033-7579
年代: 1984
DOI:10.1080/00337578408215798
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
Sintered pellets ofCeO2 and UO2, as well as PuO2 powder, have been irradiated with alpha particles emitted from an effectively semi-infinite 238PuO2 source. The lattice parameters of all three materials increased with dose,Dα, according to the expression δa/a0=A[1—exp(—BDα)], in agreement with a previously developed model. The recovery behavior of the lattice defects has been studied by isochronal annealing. Two recovery stages were observed in the temperature range between 50 and 1000°C for each material, and the activation energies were estimated based on previous single crystal studies. Comparisons with self-damage from alpha decay are made, and the behavior of the lattice defects is discussed.
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