A5029000371- Geological and Geochemical Analysis
- Geology and Paleoclimatology Research
- Paleontology and Stratigraphy of Fossils
- Radioactive element chemistry and processing
- Radioactive contamination and transfer
- Nuclear Materials and Properties
Centre National de la Recherche Scientifique
2016
CEA DAM Île-de-France
2016
Commissariat à l'Énergie Atomique et aux Énergies Alternatives
2016
Institut de physique du globe de Paris
2015-2016
Sorbonne Paris Cité
2016
Université Paris Cité
2016
A new method for accurate determination of oxygen isotopes in uranium oxides encountered the nuclear fuel cycle was developed using conventional BrF 5 fluorination technique. Laser‐assisted tested comparison. We focused on fine powders triuranium octoxide (U 3 O 8 ), dioxide (UO 2±x with 0 ≤ x 0.25), trioxide . n H 2 O, 0.8 2) and diuranates (M U 7 M = NH 4 , Na or Mg 0.5 6). Fluorination at room temperature heating under vacuum 150 °C are shown to eliminate both adsorbed structural water...