A study of xenon aggregates in uranium dioxide using X-ray absorption spectroscopy

被引：41

作者：

Garcia, P.

Martin, P.

Carlot, G.

Castelier, E.

Ripert, M.

Sabathier, C.

Valot, C.

D'Acapito, F.

Hazemann, J. -L.

Proux, O.

Nassif, V.

机构：

[1] Ctr Etud Cadarache, DEN, DEC, SESC,LLCC, F-13108 St Paul Les Durance, France

[2] GILDA, CRG, ESRF, F-38043 Grenoble, France

[3] CNRS, Cristallog Lab, F-38042 Grenoble 9, France

[4] Univ Grenoble 1, UMR CNRS, Lab Geophys Interne & Tectonophys, F-38400 St Martin Dheres, France

[5] CEA Grenoble, DRFMC, SP2M, NRS, F-38054 Grenoble 9, France

来源：

JOURNAL OF NUCLEAR MATERIALS | 2006年 / 352卷 / 1-3期

关键词：

D O I：

10.1016/j.jnucmat.2006.02.047

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

X-ray absorption spectroscopy experiments were performed on a set of xenon implanted uranium dioxide samples. Results indicate that the gas forms highly pressurised inclusions as a result of temperature anneals or an external ion irradiation. Estimated bubble pressures were found to be in the region of 2-5 GPa at low temperature. The consequences of such high pressures developing within intra-granular bubbles in irradiated fuels are discussed. A model is given enabling the computation of the sink strengths of bubbles as a function of the pressure of the rare-gas they contain. The model predicts that for pressure values found in the experiments, fission gas bubbles do not act as sinks for diffusing rare-gas atoms. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：136 / 143

页数：8

共 18 条

[1] HIGH-PRESSURE X-RAY-DIFFRACTION STUDY OF SOLID XENON AND ITS EQUATION OF STATE IN RELATION TO METALLIZATION TRANSITION [J].