1.
|
|
2.
|
|
3.
|
|
4.
|
RF Characterisation of New Coatings for Future Circular Collider Beam Screens
/ Krkotić, Patrick (CELLS - ALBA, LLS ; Barcelona, Polytechnic U.) ; Calatroni, Sergio (CERN) ; Granados, Xavier (Barcelona, Autonoma U.) ; Gutierrez, Joffre (Barcelona, Autonoma U.) ; Hannah, Adrian (Daresbury) ; Malyshev, Oleg B (Daresbury) ; O'Callaghan, J M (Barcelona, Polytechnic U.) ; Pérez, Francis (CELLS - ALBA, LLS) ; Pont, Montserrat (CELLS - ALBA, LLS) ; Puig, Teresa (Barcelona, Autonoma U.) et al.
For the future high energy colliders being under the design at this moment, the choice of a low surface impedance beam screen coating material has become of fundamental importance to ensure sufficiently low beam impedance and consequently guaranteed stable operation at high currents. We have studied the use of high-temperature superconducting coated conductors as possible coating materials for the beam screen of the FCC-hh. [...]
Geneva : JACoW, 2021 - 4 p.
- Published in : JACoW IPAC 2021 (2021) 2453-2456
Fulltext: PDF;
In : 12th International Particle Accelerator Conference (IPAC 2021), Online, 24 - 28 May 2021, pp.2453-2456
|
|
5.
|
Laser ablated surface engineering: from discovery to machine application
/ Valizadeh, R (Daresbury) ; Malyshev, O b (Daresbury) ; Sian, T (Daresbury ; U. Manchester (main)) ; Colligon, J S (Daresbury) ; Li, Q (U. Liverpool (main)) ; Perrie, W (U. Liverpool (main))
In the past few years we have established that Laser Ablation Surface Engineering (LASE) is a very effective way of producing surfaces which have Secondary Electron yields (SEY) < 1. These can be achieved with a variety of laser pulse durations from nano- to pico seconds. [...]
2020 - 8 p.
Fulltext from publisher: PDF;
In : ECLOUD’18: Proceedings of the Joint INFN-CERN-ARIES Workshop on Electron-Cloud Effects, La Biodola, Isola d'Elba, Italy, 3 - 7 Jun 2018, pp.209-216 (CERN-2020-007)
|
|
6.
|
Impact of the Cu Substrate Surface Preparation on the Morphological, Superconductive and RF Properties of the Nb Superconductive Coatings
/ Pira, Cristian (INFN, Legnaro) ; Antoine, Claire (IRFU, Saclay) ; Chyhyrynets, Eduard (INFN, Legnaro) ; Jiang, Xin (Siegen U.) ; Katasevs, Aleksejs (Riga Tech. U.) ; Kaupuzs, Jevgenijs (Riga Tech. U.) ; Kugeler, Oliver (Helmholtz-Zentrum, Berlin) ; Leith, Stewart (Siegen U.) ; Malyshev, Oleg (Daresbury) ; Medvids, Arturs (Riga Tech. U.) et al.
Nowadays, one of the main issues of the superconducting thin film resonant cavities is the Cu surface preparation. A better understanding of the impact of copper surface preparation on the morphological, superconductive (SC) and RF properties of the coating, is mandatory in order to improve the performances of superconducting cavities by coating techniques. [...]
2019 - 6 p.
- Published in : 10.18429/JACoW-SRF2019-THP041
Fulltext: PDF;
In : 19th International Conference on RF Superconductivity, Dresden, Germany, 30 Jun - 05 Jul 2019, pp.937-942
|
|
7.
|
Magnetic Field Penetration of Niobium Thin Films Produced by the ARIES Collaboration
/ Turner, Daniel (Cockcroft Inst. Accel. Sci. Tech. ; Lancaster U. (main)) ; Burt, Graeme (Cockcroft Inst. Accel. Sci. Tech. ; Lancaster U. (main)) ; Chyhyrynets, Eduard (INFN, Legnaro) ; Dumbell, Keith (Cockcroft Inst. Accel. Sci. Tech. ; Daresbury) ; Junginger, Tobias (TRIUMF ; U. Victoria (main)) ; Leith, Stewart (U. Siegen (main)) ; Malyshev, Oleg (Daresbury ; Cockcroft Inst. Accel. Sci. Tech.) ; Medvids, Arturs (Riga Tech. U.) ; Onufrijevs, Pavels (Riga Tech. U.) ; Pira, Cristian (INFN, Legnaro) et al.
Superconducting (SC) thin film coatings on Cu substrates are already widely used as an alternative to bulk Nb SRF structures. Using Cu allows improved thermal stability compared to Nb due to having a greater thermal conductivity. [...]
2022 - 5 p.
- Published in : JACoW SRF 2021 (2022) 77-81
Fulltext: PDF;
In : 20th International Conference on RF Superconductivity (SRF 2021), Online, US, 28 Jun - 2 Jul 2021, pp.77-81
|
|
8.
|
First accelerator test of vacuum components with laser-engineered surfaces for electron-cloud mitigation
/ Calatroni, Sergio (CERN) ; Garcia-Tabares Valdivieso, Elisa (CERN) ; Neupert, Holger (CERN) ; Nistor, Valentin (CERN) ; Perez Fontenla, Ana Teresa (CERN) ; Taborelli, Mauro (CERN) ; Chiggiato, Paolo (CERN) ; Malyshev, Oleg (Daresbury) ; Valizadeh, Reza (Daresbury) ; Wackerow, Stefan (Dundee U.) et al.
Electron cloud mitigation is an essential requirement for high-intensity proton circular accelerators. Among other solutions, laser engineered surface structures (LESS) present the advantages of having potentially a very low secondary electron yield (SEY) and allowing simple scalability for mass production. [...]
2017 - 12 p.
- Published in : Phys. Rev. Accel. Beams 20 (2017) 113201
Fulltext: PDF;
|
|
9.
|
|
10.
|
Synthesis of Nb and Alternative Superconducting Film to Nb for SRF Cavity as Single Layer
/ Valizadeh, Reza (Daresbury ; Cockcroft Inst. Accel. Sci. Tech.) ; Antoine, Claire (IRFU, Saclay) ; Chyhyrynets, Eduard (INFN, Legnaro) ; Goudket, Philippe (Daresbury ; Cockcroft Inst. Accel. Sci. Tech.) ; Hannah, Adrian (Daresbury ; Cockcroft Inst. Accel. Sci. Tech.) ; Kugeler, Oliver (Helmholtz-Zentrum, Berlin) ; Leith, Stewart (U. Siegen (main)) ; Malyshev, Oleg (Daresbury ; Cockcroft Inst. Accel. Sci. Tech.) ; Medvids, Arturs (Riga Tech. U.) ; Onufrijevs, Pavels (Riga Tech. U.) et al.
The production of superconducting coatings for radio frequency (RF) cavities has been developed over several decades. It is widely accepted that for any further improvement in cavity RF performance, innovation is needed and one may have to turn to other forms of Nb and other superconducting materials. [...]
2022 - 6 p.
- Published in : JACoW SRF 2021 (2022) 893-898
Fulltext: PDF;
In : 20th International Conference on RF Superconductivity (SRF 2021), Online, US, 28 Jun - 2 Jul 2021, pp.893-898
|
|