The migration of radionuclides (RN) in the environment is a topic of general interest, for its implications on public health, and it is an issue for the long-term safety studies of deep geological repositories (DGR) for high-level radioactive waste. The role played by colloids on RN migration is also of great concern. Diffusion and sorption are fundamental mechanisms controlling RN migration in rocks and many experimental approaches are applied to determine transport parameters for low sorbing RN in homogeneous rocks. However, it is difficult to obtain relevant data for high sorbing RN or colloids, for which diffusion lengths are extremely short, or within heterogeneous rocks, where transport might be different in different minerals. The ion beam techniques Rutherford Backscattering Spectrometry (RBS) and micro-Particle Induced X-Ray Emission (μPIXE), rarely applied in the field, were selected for their micro-analytical potential to study RN diffusion and surface retention within heterogeneous rocks. Main achievements obtained during last 12 years are highlighted.
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18 July 2013
MULTIDISCIPLINARY APPLICATIONS OF NUCLEAR PHYSICS WITH ION BEAMS (ION BEAMS '12)
6–8 June 2012
Legnaro-Padova, Italy
Research Article|
July 18 2013
Ion beam analyses of radionuclide migration in heterogeneous rocks
Ursula Alonso;
Ursula Alonso
CIEMAT, Avda. Complutense 40, Madrid 28040,
Spain
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Tiziana Missana;
Tiziana Missana
CIEMAT, Avda. Complutense 40, Madrid 28040,
Spain
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Miguel Garcia-Gutierrez;
Miguel Garcia-Gutierrez
CIEMAT, Avda. Complutense 40, Madrid 28040,
Spain
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Alessandro Patelli;
Alessandro Patelli
CIVEN, Via delle Industrie 5, Venezia-Marghera 30175,
Italy
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Valentino Rigato;
Valentino Rigato
LNL-INFN, Viale dell' Universitá 2, Legnaro-Padova 35020,
Italy
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Daniele Ceccato
Daniele Ceccato
LNL-INFN, Viale dell' Universitá 2, Legnaro-Padova 35020,
Italy
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AIP Conf. Proc. 1530, 87–94 (2013)
Citation
Ursula Alonso, Tiziana Missana, Miguel Garcia-Gutierrez, Alessandro Patelli, Valentino Rigato, Daniele Ceccato; Ion beam analyses of radionuclide migration in heterogeneous rocks. AIP Conf. Proc. 18 July 2013; 1530 (1): 87–94. https://doi.org/10.1063/1.4812909
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