Comparison of techniques to localise U-bearing particles in environmental samples

Aurélie Diacre (1, 2, 3) , Pascal Fichet (4, 5) , Paul Sardini (6) , Jérôme Donnard (7) , Anne-Laure Fauré (1) , Olivier Marie (1) , Katsumi Shozugawa (8) , Michaël Susset (1) , Mayumi Hori (8) , Takizawa Tsutomu (8) , Fabien Pointurier (1) , Olivier Evrard (2, 3)

1 DAM/DIF - DAM Île-de-France
2 LSCE - Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette]
3 GEDI - Géochimie Des Impacts
4 SEARS - Service d'études analytiques et de réactivité des surfaces
5 CEA-DES (ex-DEN) - CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire)
6 HydrASA - Hydrogéologie, Argiles, Sols, Altérations (E2)
7 Ai4r - Ai4r
8 UTokyo - The University of Tokyo

This publication shows results of a comparison of three techniques for localising radioactive, and U-bearing particles on same samples. Particles are localised by the means of three methods: (1) Fission Tracks (FT), (2) Imaging Plate (IP), and (3) real time autoradiography (BeaQuant ®). These techniques were applied to various samples, including a sediment sampled in JRNC 3 the vicinity of the Fukushima Dai-Ichi Nuclear Power Plant (FDNPP) and a sample made of pure U oxide particles. In addition, the efficiency of the combination of two methods (FT and IP) to localise specifically anthropogenic U-bearing particles was tested.

Keywords: BeaQuant ®; imaging plate; fission tracks; alpha and beta emitters localisation; uranium; Panoply

Domains: Environmental Sciences; Continental interfaces, environment; Geochemistry

Aurélie Diacre, Pascal Fichet, Paul Sardini, Jérôme Donnard, Anne-Laure Fauré, et al.. Comparison of techniques to localise U-bearing particles in environmental samples. Journal of Radioanalytical and Nuclear Chemistry, 2022, 331, pp.1701-1714. ⟨10.1007/s10967-022-08229-w⟩. ⟨cea-03600979⟩