Speaker
David Mayweg
(Chalmers University of Technology)
Description
We used APT to investigate Zr-based fuel cladding from boiling water reactor and cold-worked 316L tubes from pressurized water reactor operation.
We carried out voltage pulsing APT on cryo-FIBed Zr cladding (with low success rate); we report on one data set that - contrary to modelling and NanoSIMS experiments - does not show H trapping around an Zr(Fe,Cr)_2-precipitate and discuss how meaningful this result is.
Due to transmutation the 316L steel tube contains H, D and a very small amount of T. In one specimen we found clusters of ions with m/c = 2 Da and those with m/c = 3 Da. We discuss potential explanations for this observation.
Primary author
David Mayweg
(Chalmers University of Technology)
Co-author
Prof.
Mattias Thuvander
(Chalmers University of Technology)
