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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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| 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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| 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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| Ali, M. A. |
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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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Malyshev, Oleg
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (10/10 displayed)
- 2024V₃Si: an alternative thin film material for superconducting RF cavities
- 2024Upgraded multiprobe sample inserts for thin film SRF cavity developments
- 2024A high throughput facility for the RF characterisation Of planar superconducting thin films
- 2023V3Si Thin Films for SRF Applications
- 2023The effect of small bends in thin non-evaporable getter coated tubes on the partial pressure ratio as a function of sticking probability
- 2023Deposition and Characterisation of V₃Si films for SRF Applications
- 2022A First 6 GHz Cavity Deposition with B1 Superconducting Thin Film at ASTeC
- 2019PVD Depostion of Nb₃Sn Thin Film on Copper Substrate from an Alloy Nb₃Sn Target
- 2019Impact of the Cu Substrate Surface Preparation on the Morphological, Superconductive and RF Properties of the Nb Superconductive Coatings
- 2017Atomic Layer Deposition of Niobium Nitride from Different Precursors
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document
A First 6 GHz Cavity Deposition with B1 Superconducting Thin Film at ASTeC
Abstract
Nb₃Sn, NbTiN and NbN are superconductors with critical temperatures of 18.3, 12.6-17 and 11.6-17.5 K, respectively, these are higher than that of Nb at 9.3 K. Hence, at 4 K, they have an RF resistance, an order of magnitude lower than that of Nb, which leads to quality factors above those of Nb. In recent years, there has been an extensive effort converting Nb cavities into Nb₃Sn. Alloying the top inner layer of the cavity using Sn diffusion at a high temperature has had some degree of success, however, the reproducibility remains a major hindering and limiting factor. In this study, we report on the PVD deposition of NbTiN inside a 6 GHz cavity, using an external magnetic coil configuration. The deposition is done at an elevated temperature of about 650 C. We report on the superconducting properties, film structure and its stoichiometry and surface chemical state. The films have been characterised with SEM, XRD, XPS, EDS and SQUID magnetometer.