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Probing overheatings under microprobe irradiation via Zn vaporisation

Abstract : A thin layer of ZnO 0.3 deposited on a SiO 2 glass substrate was irradiated with a 2 MeV α microbeam. The disappearance of ZnO 0.3 in the neighbourhood of the beam was registered in situ. We quantitatively account for this behaviour in the framework of a very simple vaporisation model based both upon the local temperature increase resulting from the microbeam itself and upon the variation of the Zn vapour pressure with the local temperature. Other possible explanations are briefly discussed.
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G Plumereau, Pierre Ailloud, P Berger, D. Boutard, M J Guittet, et al.. Probing overheatings under microprobe irradiation via Zn vaporisation. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Elsevier, 1999, 149, pp.153 - 166. ⟨10.1016/S0168-583X(98)00638-7⟩. ⟨cea-01395514⟩



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