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Abstract

Transmission electron microscopy (TEM) experiments were performed, on a set of UO(2) thin foils following the implantation of 390 keV Xe{3+} and 300 keV Cs{2+} ions. TEM results reveal the nature and quantity of defects formed as a function of Xe and Cs ion fluences. These do not appear to be dependent upon the nature of the implanted ions. In addition to dislocation and dislocation loop formation, Xe and Cs aggregates were observed. At several Xe and Cs concentrations, the threshold temperatures for aggregate formation were determined. At concentrations of 0.4 at.%, Xe precipitation occurred above 870 K. The threshold temperature for Xe precipitation decreased to 670 K for the higher concentration samples (2 at.%) and to 770 K for Cs implanted samples at this concentration. No significant differences in the bubble size and densities were observed between the high concentration Xe or Cs samples. The aggregates formed were in the nanometer size range.

Additional information

Authors: SABATHIER C, Département de Recherches sur la Fusion Contrôlée, Association Euratom-CEA sur la Fusion, CEA Cadarache, Saint-Paul-lez-Durance (FR);GARCIA P, Département de Recherches sur la Fusion Contrôlée, Association Euratom-CEA sur la Fusion, CEA Cadarache, Saint-Paul-lez-Durance (FR);CARLOT G, Département de Recherches sur la Fusion Contrôlée, Association Euratom-CEA sur la Fusion, CEA Cadarache, Saint-Paul-lez-Durance (FR);MARTIN P, Département de Recherches sur la Fusion Contrôlée, Association Euratom-CEA sur la Fusion, CEA Cadarache, Saint-Paul-lez-Durance (FR);VALOT C, Département de Recherches sur la Fusion Contrôlée, Association Euratom-CEA sur la Fusion, CEA Cadarache, Saint-Paul-lez-Durance (FR);VINCENT L, CNRS Université Paris XI, CSNSM/PCI, Orsay (FR);GARRIDO F, CNRS Université Paris XI, CSNSM/PCI, Orsay (FR);THOME L, CNRS Université Paris XI, CSNSM/PCI, Orsay (FR)
Bibliographic Reference: An article published in: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Volume 266, Issues 12-13 (2008), Pages 6
Availability: This article can be accessed online by subscribers, and can be ordered online by non-subscribers, at: http://dx.doi.org/doi:10.1016/j.nimb.2008.03.158
Record Number: 200819866 / Last updated on: 2008-06-24
Category: PUBLICATION
Original language: en
Available languages: en