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Thick Film Morphology and SC Characterizations of 6 GHz Nb/Cu Cavities
/ Garcia Diaz, Vanessa (INFN, Legnaro ; U. Ferrara (main)) ; Azzolini, Oscar (INFN, Legnaro) ; Chyhyrynets, Eduard (INFN, Legnaro) ; Fonnesu, Dorothea (CERN) ; Keppel, Giorgio (INFN, Legnaro) ; Kugeler, Oliver (Helmholtz-Zentrum, Berlin) ; Pira, Cristian (INFN, Legnaro) ; Stivanello, Fabrizio (INFN, Legnaro) ; Tikhonov, Dmitry (Helmholtz-Zentrum, Berlin) ; Valizadeh, Reza (Daresbury) et al.
Thick films deposited in long pulse DCMS mode onto 6 GHz copper cavities have demonstrated the mitigation of the Q-slope at low accelerating fields. The Nb thick films (~40 microns) show the possibility to reproduce the bulk niobium superconducting properties and morpholo-gy characterizations exhibited dense and void-free films that are encouraging for the scaling of the process to 1.3 GHz cavities. [...]
2022 - 5 p.
- Published in : JACoW SRF 2021 (2022) 18-22
Fulltext: PDF;
In : 20th International Conference on RF Superconductivity (SRF 2021), Online, US, 28 Jun - 2 Jul 2021, pp.18-22
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Main Highlights of ARIES WP15 Collaboration
/ Malyshev, Oleg (Daresbury ; Cockcroft Inst. Accel. Sci. Tech.) ; Antoine, Claire (IRFU, Saclay) ; Azzolini, Oscar (INFN, Legnaro) ; Burt, Graeme (Cockcroft Inst. Accel. Sci. Tech. ; Lancaster U. (main)) ; Chyhyrynets, Eduard (INFN, Legnaro) ; Goudket, Philippe (Daresbury ; Cockcroft Inst. Accel. Sci. Tech.) ; Keppel, Giorgio (INFN, Legnaro) ; Kugeler, Oliver (Helmholtz-Zentrum, Berlin) ; Leith, Stewart (U. Siegen (main)) ; Medvids, Arturs (Riga Tech. U.) et al.
An international collaboration of research teams from CEA (France), CERN (Switzerland), INFN/LNL (Italy), HZB and USI (Germany), IEE (Slovakia), RTU (Latvia) and STFC/DL (UK), are working together on better understanding of how to improve the properties of superconducting thin films (ScTF) for RF cavities. The collaboration has been formed as WP15 in the H2020 ARIES project funded by EC. [...]
2022 - 5 p.
- Published in : JACoW SRF 2021 (2022) 571-575
Fulltext: PDF;
In : 20th International Conference on RF Superconductivity (SRF 2021), Online, US, 28 Jun - 2 Jul 2021, pp.571-575
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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
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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
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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
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Next-Generation Superconducting RF Technology based on Advanced Thin Film Technologies and Innovative Materials for Accelerator Enhanced Performance and Energy Reach
/ Valente-Feliciano, A.-.M. (Jefferson Lab) ; Antoine, C. (Jefferson Lab ; IRFU, Saclay, DACM) ; Anlage, S. (Maryland U.) ; Ciovati, G. (Jefferson Lab) ; Delayen, J. (Jefferson Lab ; Old Dominion U.) ; Gerigk, F. (CERN) ; Gurevich, A. (Old Dominion U.) ; Junginger, T. (TRIUMF ; Victoria U.) ; Keckert, S. (Helmholtz-Zentrum, Berlin) ; Keppe, G. (INFN, Legnaro) et al.
Superconducting RF is a key technology for future particle accelerators, now relying on advanced surfaces beyond bulk Nb for a leap in performance and efficiency. [...]
arXiv:2204.02536.
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29.
eConf - Fulltext
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Pulsed Mode Operation and Longitudinal Parameter Measurement of the Rossendorf SRF Gun
/ Teichert, J (Helmholtz-Zentrum, Dresden-Rossendorf) ; Arnold, A (Helmholtz-Zentrum, Dresden-Rossendorf) ; Buettig, H (Helmholtz-Zentrum, Dresden-Rossendorf) ; Justus, M (Helmholtz-Zentrum, Dresden-Rossendorf) ; Lehnert, U (Helmholtz-Zentrum, Dresden-Rossendorf) ; Michel, P (Helmholtz-Zentrum, Dresden-Rossendorf) ; Schamlott, A (Helmholtz-Zentrum, Dresden-Rossendorf) ; Schneider, Ch (Helmholtz-Zentrum, Dresden-Rossendorf) ; Schurig, R (Helmholtz-Zentrum, Dresden-Rossendorf) ; Xiang, R (Helmholtz-Zentrum, Dresden-Rossendorf) et al.
WP: 10: SC RF technology for higher intensity proton accelerators and higher energy electron linacs
Task: 10.7: SCRF Gun at ELBE
The Rossendorf SRF gun with a 3½ cell cavity has been operated since 2007. [...]
EuCARD-CON-2011-046.
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2011.
Access to fulltext document - Published version from JACoW
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Scientific opportunies for bERLinPro 2020+, report with ideas and conclusions from bERLinProCamp 2019
/ Kamps, Thorsten (Helmholtz-Zentrum, Berlin ; Humboldt U., Berlin (main)) ; Abo-Bakr, Michael (Helmholtz-Zentrum, Berlin) ; Adelmann, Andreas (PSI, Villigen) ; Andre, Kevin (CERN) ; Angal-Kalinin, Deepa ; Armborst, Felix (Helmholtz-Zentrum, Berlin) ; Arnold, Andre (HZDR, Dresden) ; Arnold, Michaela (Darmstadt, Tech. U.) ; Amador, Raymond (Humboldt U., Berlin (main)) ; Benson, Stephen (Jefferson Lab) et al.
The Energy Recovery Linac (ERL) paradigm offers the promise to generate intense electron beams of superior quality with extremely small six-dimensional phase space for many applications in the physical sciences, materials science, chemistry, health, information technology and security. [...]
arXiv:1910.00881.
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2019. - 7 p.
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Commissioning results of the HZB quadrupole resonator
/ Kleindienst, Raphael (Helmholtz-Zentrum, Berlin) ; Burrill, Andrew (Helmholtz-Zentrum, Berlin) ; Knobloch, Jens (Helmholtz-Zentrum, Berlin) ; Kugeler, Oliver (Helmholtz-Zentrum, Berlin)
Recent cavity results with niobium have demonstrated the necessity of a good understanding of both the BCS and residual resistance. For a complete picture and comparison with theory, it is essential that one can measure the RF properties as a function of field, temperature, frequency and ambient magnetic field. [...]
CERN-ACC-2015-0114.-
Geneva : CERN, 2015
- Published in : 10.18429/JACoW-SRF2015-WEA1A04
Fulltext: PDF;
In : 17th International Conference on RF Superconductivity, Whistler, Canada, 13 - 18 Sep 2015, pp.WEA1A04
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RF characterization of small scale cavities
/ Badan, L (INFN, Legnaro) ; Durand, C (INFN, Legnaro) ; Palmieri, V (INFN, Legnaro) ; Preciso, R (INFN, Legnaro) ; Stark, S (Moscow Steel, Alloys Inst.) ; Stivanello, F (INFN, Legnaro) ; Venturini, W (INFN, Legnaro)
1998
- Published in : Part. Accel.: 62 (1998) , pp. 117-123
Fulltext: PDF;
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