| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1569511 | Journal of Nuclear Materials | 2007 | 6 Pages |
Abstract
In the context of nuclear waste storage, the knowledge of the effect of irradiation on the diffusion of helium produced by α-decays in apatites is an important issue. The analysis of implanted 3He diffusion for two compositions was carried out with the 3He(d,p)4He nuclear reaction by using a deuteron milli- or micro-beam. Upon 163-MeV Au-ion irradiation, a significant fraction of 3He atoms migrated towards the surface below which they were trapped, whereas a proportion of 3He atoms remained trapped in the end-of-range region. Moreover, a clear helium loss was determined. These radiation-induced migration effects are enhanced in Ca10(PO4)6F2 compared with the Ca4Nd6(SiO4)6F2.
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Authors
S. Miro, F. Studer, J.-M. Costantini, P. Berger, J. Haussy, P. Trouslard, J.-J. Grob,