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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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Burt, Graeme
University of Strathclyde
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (10/10 displayed)
- 2024A high throughput facility for the RF characterisation Of planar superconducting thin films
- 2023Deposition and Characterisation of V₃Si films for SRF Applications
- 2022At scale, experimental capture of electrical response of carbon fibre composites to inform integrated electrical power and structural systems
- 2021A route to sustainable aviationcitations
- 2019Power hardware-in-the-loop setup for developing, analyzing and testing mode identification techniques and dynamic equivalent models
- 2019Grounding topologies for resilient, integrated composite electrical power systems for future aircraft applications
- 2019A novel methodology for macroscale, thermal characterization of carbon fiber-reinforced polymer for integrated aircraft electrical power systemscitations
- 2011Methodology for testing loss of mains detection algorithms for microgrids and distributed generation using real-time power hardware–in-the-loop based techniquecitations
- 2011Preliminary evaluation of a high-pressure, high-temperature downhole optical sensorcitations
- 2002The use of internet technologies to enable flexible alarm processingcitations
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article
A high throughput facility for the RF characterisation Of planar superconducting thin films
Abstract
<jats:title>Abstract</jats:title><jats:p>Accelerator laboratories worldwide are researching copper radio frequency (RF) cavities coated with superconducting thin films to exceed the limits of bulk niobium. The development and RF testing of thin films on small planar samples is vital before cavity depositions. A team at Daresbury Laboratory have developed a cost-effective facility using a novel 7.8 GHz Choke Cavity for the RF characterisation of planar samples. RF chokes ensure that no electrical contact is required between the sample and the cavity. The main advantages are: a simple sample design (90 − 130 mm diameter disk with no sample-cavity welding) and easy operation using a LHe-free cryostat. This enables high sample throughput, with up to 3 sample tests per week, making the facility suitable for quick, systematic scanning of deposition parameters. With the sample thermally and physically isolated from the test cavity, it is possible to measure the average surface resistance, <jats:italic>R</jats:italic><jats:sub>s</jats:sub>, directly using an RF-DC compensation method. Facility commissioning has been performed with bulk and thin film niobium samples. These tests have demonstrated the ability to measure <jats:italic>R</jats:italic><jats:sub>s</jats:sub> at temperatures in the range 4 − 20 K and sample peak magnetic fields up to 3 mT. The minimum resolvable <jats:italic>R</jats:italic><jats:sub>s</jats:sub> is 0.5 μΩ with typical uncertainties of 9 − 15%. The design, operation and commissioning of this facility is reported in this paper.</jats:p>