Neutron radiography is a powerful tool for the investigation of the hydrogen uptake of zirconium alloys. It is fast, fully quantitative, non-destructive and provides a spatial resolution of 30 µm. The non-destructive character of neutron radiography provides the possibility of in-situ investigations. The paper describes the calibration of the method and delivers results of ex-situ measurements of the hydrogen concentration distribution after steam oxidation, as well as in-situ experiments of hydrogen diffusion in ß-Zr and in-situ investigations of the hydrogen uptake during steam oxidation.
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Grosse, M., van den Berg, M., Lehmann, E. et al. Ex-situ and in-situ neutron radiography investigations of the hydrogen uptake of nuclear fuel cladding materials during steam oxidation at 1000°C and above. MRS Online Proceedings Library 1262, 309 (2010). https://doi.org/10.1557/PROC-1262-W03-09