| People | Locations | Statistics |
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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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Teodoro, Orlando
Universidade Nova de Lisboa
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (16/16 displayed)
- 2023Amorphous carbon thin filmscitations
- 2023The Role of Hydrogen Incorporation into Amorphous Carbon Films in the Change of the Secondary Electron Yieldcitations
- 2020Free-standing N-Graphene as conductive matrix for Ni(OH)2 based supercapacitive electrodescitations
- 2019Nanocomposite thin films based on Au-Ag nanoparticles embedded in a CuO matrix for localized surface plasmon resonance sensingcitations
- 2018Development of Au/CuO nanoplasmonic thin films for sensing applicationscitations
- 2016Surface modifications on as-grown boron doped CVD diamond films induced by the B2O3-ethanol-Ar systemcitations
- 2014Ion-plasma treatment of reed switch contactscitations
- 2013Amorphous Carbon Coatings: Temperature Effect on Secondary Electron Yield (SEY)
- 2013Study of SEY degradation of amorphous carbon coatings
- 2013Increase of secondary electron yield of amorphous carbon coatings under high vacuum conditionscitations
- 2012An upgraded TOF-SIMS VG Ionex IX23LS: Study on the negative secondary ion emission of III-V compound semiconductors with prior neutral cesium depositioncitations
- 2012TOF-SIMS study of cystine and cholesterol stonescitations
- 2009Characterisation of DLC Films Deposited Using Titanium Isopropoxide (TIPOT) at Different Flow Ratescitations
- 2006Characterisation of metal/mould interface on investment casting of γ-TiAlcitations
- 2005Evaluation of y2O3 as front layer of ceramic crucibles for vaccum induction melting of TiAl based alloys
- 2002Anomalous growth of Ba on Ag(111)citations
Places of action
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document
Study of SEY degradation of amorphous carbon coatings
Abstract
Deposition of low secondary electron yield (SEY) carbon coatings by magnetron sputtering onto the inner walls of the accelerator seems to be the most promising solution for suppressing the electron cloud problem. However, these coatings change their electron emission properties during long term exposure to air. The ageing process of carbon coated samples with initial SEY of about 0.9 received from CERN is studied as a function of exposure to different environments. It is shown that samples having the same initial SEY may age with different rates. The SEY increase can be correlated with the surface concentration of oxygen. Annealing of samples in air at 100-200 °C reduces the ageing rate and even recovers previously degraded samples. The result of annealing is reduction of the hydrogen content in the coatings by triggering its surface segregation followed by desorption