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Radiochemical and SIMS measurement of 36Cl in nuclear graphite: the issue of the measurement dispersion

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Abstract

This paper presents a radioanalytical methodology and the main measurement results of 36Cl in irradiated nuclear graphite samples. The radiochemical measurements show dispersion of these 36Cl measurements. To further investigate the location and heterogeneous distribution of chlorine, non-irradiated and irradiated graphite samples were observed by secondary ion mass spectrometry (SIMS). It was possible to explain the measurement dispersion thanks to the complementarity of the analytical techniques used, i.e., radiochemical analysis on a macroscopic scale (cm3) and isotopic SIMS measurements on a microscopic scale (µm3).

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Acknowledgements

This work was carried out under the CARBOWASTE Programme: Treatment and Disposal of Irradiated Graphite and Other Carbonaceous Waste (Grant Agreement number FP7-21133), with partial funding from ANDRA, EDF and the CEA. The authors would also like to thank those in charge of G2 reactor operations and dismantling for having provided these samples, not to mention their technical and financial support since 2008.

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Authors and Affiliations

  1. CEA, DEN, DEC, SA3C, LARC Commissariat à l’Énergie Atomique et aux Énergies Alternatives (CEA), Direction de l’Energie Nucléaire, Département d’Etudes des Combustibles, Service d’Analyse et de Caractérisation du Comportement des Combustibles, Laboratoire d’Analyses Radiochimiques et Chimiques, Centre de Cadarache, Bâtiment 152, 13108, Saint Paul Lez Durance, France

    J. Comte, C. Guy, A. L. Tornabene & M. Bertaux

  2. CEA, DEN, DSN, SEEC, LECD Commissariat à l’Énergie Atomique et aux Énergies Alternatives (CEA), Direction de l’Energie Nucléaire, Département de Services Nucléaires, Service d’Exploitation, d’Expertise et de Caractérisation, Laboratoire d’Expertise et de Caractérisation Destructive, Centre de Cadarache, Bâtiment 326, 13108, Saint Paul Lez Durance, France

    S. Parraud

  3. CEA, DEN, DEC, SA3C, LEMCI, Commissariat à l’Énergie Atomique et aux Énergies Alternatives (CEA), Direction de l’Energie Nucléaire, Département d’Etudes des Combustibles, Service d’Analyse et de Caractérisation du Comportement des Combustibles, Laboratoire d’Etudes de la Microstructure des Combustibles Irradiés, Centre de Cadarache, Bâtiment 316, 13108, Saint Paul Lez Durance, France

    B. Pasquet & P. Bienvenu

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  1. J. Comte
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  2. C. Guy
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  3. A. L. Tornabene
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  4. M. Bertaux
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  5. S. Parraud
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  6. B. Pasquet
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  7. P. Bienvenu
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Correspondence to J. Comte.

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Comte, J., Guy, C., Tornabene, A.L. et al. Radiochemical and SIMS measurement of 36Cl in nuclear graphite: the issue of the measurement dispersion. J Radioanal Nucl Chem 314, 1245–1255 (2017). https://doi.org/10.1007/s10967-017-5495-4

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  • DOI: https://doi.org/10.1007/s10967-017-5495-4

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