Self-healing capacity of nuclear glass observed by NMR spectroscopy

Thibault Charpentier, Laura Martel, Anamul H. Mir, Joseph Somers, Christophe Jégou, Sylvain Peuget

Research output: Contribution to journalArticle

16 Citations (Scopus)

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 244Cm 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.
LanguageEnglish
Article number25499
Number of pages6
JournalScientific Reports
Volume6
Issue number1
DOIs
Publication statusPublished - 5 May 2016
Externally publishedYes

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healing
nuclear magnetic resonance
alpha decay
glass
damage
spectroscopy
irradiation
vitrification
radioactive wastes
radiation tolerance
ion irradiation
alpha particles
heavy ions
ion beams
nuclei
ions
simulation

Cite this

Charpentier, T., Martel, L., Mir, A. H., Somers, J., Jégou, C., & Peuget, S. (2016). Self-healing capacity of nuclear glass observed by NMR spectroscopy. Scientific Reports, 6(1), [25499 ]. https://doi.org/10.1038/srep25499
Charpentier, Thibault ; Martel, Laura ; Mir, Anamul H. ; Somers, Joseph ; Jégou, Christophe ; Peuget, Sylvain. / Self-healing capacity of nuclear glass observed by NMR spectroscopy. In: Scientific Reports. 2016 ; Vol. 6, No. 1.
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Charpentier, T, Martel, L, Mir, AH, Somers, J, Jégou, C & Peuget, S 2016, 'Self-healing capacity of nuclear glass observed by NMR spectroscopy', Scientific Reports, vol. 6, no. 1, 25499 . https://doi.org/10.1038/srep25499

Self-healing capacity of nuclear glass observed by NMR spectroscopy. / Charpentier, Thibault; Martel, Laura; Mir, Anamul H.; Somers, Joseph; Jégou, Christophe; Peuget, Sylvain.

In: Scientific Reports, Vol. 6, No. 1, 25499 , 05.05.2016.

Research output: Contribution to journalArticle

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T1 - Self-healing capacity of nuclear glass observed by NMR spectroscopy

AU - Charpentier, Thibault

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AU - Mir, Anamul H.

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AU - Peuget, Sylvain

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AB - 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 244Cm 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.

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Charpentier T, Martel L, Mir AH, Somers J, Jégou C, Peuget S. Self-healing capacity of nuclear glass observed by NMR spectroscopy. Scientific Reports. 2016 May 5;6(1). 25499 . https://doi.org/10.1038/srep25499