Skip to Main content Skip to Navigation
Journal articles

Self-healing capacity of nuclear glass observed by NMR spectroscopy

Abstract : Safe management of high level nuclear waste is a worldwide significant issue for which vitrification has been selected by many countries. There exists a crucial need for improving our understanding of the ageing of the glass under irradiation. While external irradiation by ions provides a rapid simulation of damage induced by alpha decays, short lived actinide doping is more representative of the reality. Here, we report radiological NMR experiments to compare the damage in International Simplified Glass (ISG) when irradiated by these two methods. In the 0.1 mole percent 244 Cm doped glass, accumulation of high alpha decay only shows small modifications of the local structure, in sharp contrast to heavy ion irradiation. These results reveal the ability of the alpha particle to partially repair the damage generated by the heavy recoil nuclei highlighting the radiation resistance of nuclear glass and the difficulty to accurately simulate its behaviour by single ion beam irradiations.
Document type :
Journal articles
Complete list of metadatas

Cited literature [34 references]  Display  Hide  Download

https://hal-cea.archives-ouvertes.fr/cea-01312958
Contributor : Serge Palacin <>
Submitted on : Monday, May 9, 2016 - 12:31:06 PM
Last modification on : Monday, February 10, 2020 - 6:12:48 PM

File

srep25499.pdf
Publisher files allowed on an open archive

Identifiers

Citation

Thibault Charpentier, Laura Martel, Anamul Mir, Joseph Somers, Christophe Jégou, et al.. Self-healing capacity of nuclear glass observed by NMR spectroscopy. Scientific Reports, Nature Publishing Group, 2016, 6, pp.25499. ⟨10.1038/srep25499⟩. ⟨cea-01312958⟩

Share

Metrics

Record views

233

Files downloads

309