JRP CALL information
Supported By

European Commission

Short description of the work
This JRP is dedicated to the study by TEM (transmission electron microscope) of self-irradiation effects in (U0.85Am0.15)O2 compounds for transmutation (a dense and a porous sample, both 4.5 years old).
Before this stay, both samples were already studied by TEM, which notably revealed the high level of cristallinity of the samples, despite the accumulated dose and, notably, the presence, as expected, of He bubbles in the materials. During this stay, a piece of the dense sample was thermally annealed in a Knudsen cell coupled with a mass spectrometer. The He release could thus be recorded as a function of temperature, which will allow the description of the phenomena leading to this release. Further TEM studies of the annealed sample are now ongoing. The results will be integrated in a publication in a peer-reviewed journal.

Main visitor contact data
Name: Florent Lebreton
Organisation: CEA Marcoule - DEN/DTEC/SDTC/LEMA

JRP Identification
JRP nr: TALI-C01-20
JRP title: TEM study of radiation defects in self-irradiated U1-yAmyO2-x
JRP scope: Scope 3: Actinide materials

Visited Associated Pooled Facility
Visited APF during the stay: JRC-ITU - Labs & Hot-cells
Name of the APF Contact Person: Thierry Wiss

Other APF and organisation involved in the JRP
Other organisations involved: Université de Limoges (Florent Lebreton)
Other APF involved in the project:

Description of the work done at the associated pooled facility
Start date of the stay: 1/13/2014
End date of the stay: 1/17/2014
Quantity of access: 2.5
Access Unit: Days