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Naji, M. |
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Motta, Antonella |
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Aletan, Dirar |
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Mohamed, Tarek |
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Ertürk, Emre |
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Taccardi, Nicola |
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Kononenko, Denys |
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Petrov, R. H. | Madrid |
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Alshaaer, Mazen | Brussels |
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Bih, L. |
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Casati, R. |
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Muller, Hermance |
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Kočí, Jan | Prague |
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Šuljagić, Marija |
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Kalteremidou, Kalliopi-Artemi | Brussels |
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Azam, Siraj |
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Ospanova, Alyiya |
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Blanpain, Bart |
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Ali, M. A. |
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Popa, V. |
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Rančić, M. |
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Ollier, Nadège |
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Azevedo, Nuno Monteiro |
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Landes, Michael |
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Rignanese, Gian-Marco |
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Palumbo, M. E.
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Publications (6/6 displayed)
- 2015A laboratory study of ion-induced erosion of ice-covered carbon grainscitations
- 2014Two refractory Wild 2 terminal particles from a carrot-shaped track characterized combining MIR/FIR/Raman microspectroscopy and FE-SEM/EDS analysescitations
- 2008Raman spectroscopy of ion-irradiated astrophysically relevant materialscitations
- 2004Infrared and Raman spectroscopies of refractory residues left over after ion irradiation of nitrogen-bearing icy mixturescitations
- 2004A Raman study of ion irradiated icy mixturescitations
- 2004Raman spectroscopy of ion-irradiated interplanetary carbon dust analoguescitations
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article
Infrared and Raman spectroscopies of refractory residues left over after ion irradiation of nitrogen-bearing icy mixtures
Abstract
Using infrared and Raman spectroscopies, we have studied the effects induced by ion irradiation on icy mixtures at low temperature (T=12 K) and after warm up to room temperature. In particular, we have considered mixtures made of H<SUB>2</SUB>O, CO, CH<SUB>4</SUB>, and N<SUB>2</SUB>. These mixtures have been irradiated with 30 keV He<SUP>+</SUP> and 60 keV Ar<SUP>2+</SUP> ions. After ion irradiation at low temperature, several new absorption features appear in the infrared spectra, some of which may be due to N-bearing molecular species. A refractory organic residue is left over after warm-up to room temperature. After further irradiation of the residue at room temperature, the intensity of all infrared absorption features decreases. Raman spectroscopy of similar mixtures has shown that ion irradiation causes a modification of the structure of the samples which evolve towards an amorphous carbon....