Author/Authors :
Salbu، نويسنده , , B. and Krekling، نويسنده , , T. and Lind، نويسنده , , O.C. and Oughton، نويسنده , , D.H. and Drakopoulos، نويسنده , , M. and Simionovici، نويسنده , , A. and Snigireva، نويسنده , , I. and Snigirev، نويسنده , , A. and Weitkamp، نويسنده , , T. and Adams، نويسنده , , F. and Janssens، نويسنده , , K. and Kashparov، نويسنده , , V.A.، نويسنده ,
Abstract :
For the first time different high energy microanalysis techniques were combined to characterise individual micrometer sized radioactive particles. It was shown that particle characteristics including weathering rates and mobilisation of associated radionuclides are source specific and release-scenario dependent. Fuel particles released during the explosion are characterised by UO2-cores with surrounding layer of reduced U with low weathering rates. In contrast, fuel particles released during the subsequent fire show UO2-core with surrounding layers of oxidised U2O5/U3O8 with high weathering rates
Keywords :
X-ray microscopy , focusing , diffraction , Spectroscopy , tomography
