OVERVIEW WP2: GAS RELEASE + RIM AND GRAIN BOUNDARY DIFFUSION

Workpackage 2 (WP2) consists of two main components. In the first component "Experimental determination of fission gas release# the focus is on the quantification of fission gases and fission gas release in high burn-up (HBU) UO2 spent nuclear fuels (SNF). Fission gas sampled in the plenum of a fuel rod will be analysed as well as the grain boundary inventory and the cross sectional distribution of fission gases and volatile fission products. The second component "Rim and grain boundary diffusion# deals with investigations on oxygen diffusion in spent UO2-fuel. The examination diffusion effects will result in the quantification of water penetration into the grain structures and subsequent corrosion/diffusion phenomena. Furthermore, investigations on irradiated and unirradiated fuel kernels separated from high temperature reactor (HTR) fuel are planned which are complementary to those on light water reactor (LWR) fuel.

WEGEN Detlef; 

2013-08-30

KIT Scientific Publishing

JRC83449

978-3-86644-980-0,   

www.ksp.kit.edu,    https://publications.jrc.ec.europa.eu/repository/handle/JRC83449,