Name: 11th International Workshop on Thin Films and New Ideas for Pushing the Limits of RF Superconductivity - TFSRF2024
Start: 2024-09-16T09:00:00+02:00
End: 2024-09-20T18:00:00+02:00
Location: Bat. 100, Université Paris-Saclay, France

11th International Workshop on Thin Films and New Ideas for Pushing the Limits of RF Superconductivity - TFSRF2024

from Monday, 16 September 2024 (09:00) to Friday, 20 September 2024 (18:00)

Monday, 16 September 2024
09:00 Welcome Session
09:00 - 09:30
Room: Auditorium Joliot-Curie
Contributions

09:00 Introduction talk - Claire Antoine (CEA)
09:30 SRF limits
09:30 - 11:09
Room: Auditorium Joliot-Curie
Contributions

09:30 Exploring Performance Degradation in Niobium Thin Film Radio- Frequency Cavities: A Comprehensive Study - Antonio Bianchi (INFN)

10:03 Superheating field in superconductors with nanostructured surface - Alex Gurevich

10:36 Frequency Shift Regimes and Quality Factor of the Superconducting Cavities within the Dynes Superconductor Theory - František Herman (Comenius University in Bratislava)
11:09 Coffee break
Coffee break
11:09 - 11:34
Room: Cafeteria Bat.102
11:34 SRF limits
11:34 - 13:03
Room: Auditorium Joliot-Curie
Contributions

11:34 Suppression effect on Nb3Sn films: Effects of Coating Growth Duration on the Topography of Sn Vapor-Diffused Nb3Sn - Eric Lechner (Thomas Jefferson National Accelerator Facility) Uttar Pudasaini (The College of William and Mary)

11:57 Layered iron-based superconductors for SRF cavities - Akira Miyazaki (Université Paris-Saclay (FR))

12:30 Surface heating in HTS-based high field pulsed RF cavities - Ruggero Vaglio (University of Napoli Federico II and CNR-SPIN, Genova, Italy)
13:03 Lunch Break
Lunch Break
13:03 - 14:30
14:30 Deposition modeling
14:30 - 15:16
Room: Auditorium Joliot-Curie
Contributions

14:30 EQP energy and mass analyser - Stephane Simon

14:53 Reducing the Thermal Effects during Coating of SRF Cavities: A Case Study for Atomic Layer Deposition of Alumina with a Combined Numerical and Experimental Approach - Getnet Kacha Deyu
15:16 Nb thin film technology
15:16 - 16:12
Room: Auditorium Joliot-Curie
Contributions

15:16 Status of HIPIMs develpments at CERN - Kristof Brunner

15:49 Ion bombardment energy effect on microstructure and critical current density of Nb/Cu thin films for SRF application. - Guillaume Jonathan Rosaz (CERN)
16:12 Coffee break
Coffee break
16:12 - 16:32
Room: Cafeteria Bat.102
16:32 Nb thin film technology
16:32 - 18:12
Room: Auditorium Joliot-Curie
Contributions

16:32 HiPIMS Nb/Cu cavities at 1.3 GHz - Anne-Marie Valente-Feliciano

17:05 HiPIMS Deposition of Nb Coatings with Bias Voltage: Preparation and Characterization at IHEP - Haichang Duan (IHEP)

17:29 Addressing the Medium-Field Q-Slope Challenge in Nb Thin Film Cavities - Bektur Abdisatarov (FERMILAB)
18:30 Welcome cocktail
Welcome cocktail
18:30 - 20:00
Room: Auditorium Joliot-Curie
Tuesday, 17 September 2024
09:00 Beyond Nb: Alternate materials and mulilayer structures
09:00 - 10:39
Room: Auditorium Joliot-Curie
Contributions

09:00 Bipolar HiPIMS-deposited Nb3Sn films: What we know so far - Guillaume Jonathan Rosaz (CERN)

09:33 Nb3Sn films on Cu by Magnetron Sputtering for SRF cavities at INFN-LNL - Dorothea Fonnesu (INFN)

10:06 Research of Niobium Cavity Coating with Nb3Sn Film at IHEP - Chao Dong (CN-Institute of High Energy Physics)
10:39 Coffee Break
Coffee Break
10:39 - 11:09
Room: Cafeteria Bat.102
11:09 Beyond Nb: Alternate materials and mulilayer structures
11:09 - 13:04
Room: Auditorium Joliot-Curie
Contributions

11:09 First results from Nb3Sn cavities in a CEBAF cryomodule - Anne-Marie Valente-Feliciano Grigory Eremeev (Fermilab) Uttar Pudasaini (The College of William and Mary)

11:32 Cu-based Nb3Sn QPR sample preparation via ETS bronze route - Ming Lu (HZB)

11:55 Investigations Towards Nanoscale Precise Polishing of Nb3Sn Thin Films for SRF Applications - Ziqin Yang (IMP CAS)

12:18 Nb3Sn on Cu in High Field - Andre Juliao

12:41 Microwave Vortex-dynamics Characterization in Nb3Sn under High Magnetic Fields - Pablo Vidal Garcia (Roma Tre University)
13:05 Lunch Break
Lunch Break
13:05 - 14:30
14:30 Beyond Nb: Alternate materials and mulilayer structures
14:30 - 15:50
Room: Auditorium Joliot-Curie
Contributions

14:30 SRF Thin Film Deposition of Material Other Than Nb For SRF Cavities. - Reza Valizadeh (STFC Daresbury Laboratory)

15:03 Progress on MgB2 coating for Cu superconducting RF cavities - Ke Chen (Temple University)

15:26 Enhancement of the lower critical field in Fe(Se,Te)-coated Nb structures for superconducting radio-frequency applications - Zefeng Lin (Institute of Physics, Chinese Academy of Sciences)
15:50 coffe break
coffe break
15:50 - 16:20
Room: Cafeteria Bat.102
16:20 Beyond Nb: Alternate materials and mulilayer structures
16:20 - 18:29
Room: Auditorium Joliot-Curie
Contributions

16:20 Development of Nb3Sn films for single and multilayer structures - Oleksandr Hryrorenko (JLab)

16:43 Effects of deposition parameters on superconducting NbTiN thin films for use in SRF multilayer structures - Bharath Reddy Lakki Reddy Venkata (University of Siegen)

17:06 Thin-film study of Nb3Sn-AlN-Nb and NbN-AlN-Nb on 3GHz cavity by DC magnetron sputtering. - Ryo Katamaya (KEK)

17:29 Nb3Sn Hot Topic Discussion
Wednesday, 18 September 2024
09:00 Advanced substrates
09:00 - 10:55
Room: Auditorium Joliot-Curie
Contributions

09:00 Copper full-seamless substrate cavity manufactured by hydroforming - Hayato Araki (High Energy Accelerator Research Organization (JP))

09:23 Additive manufacturing at LNL - Davide Ford

09:46 3D additive fabrication of Cu cavity with cooling channeling at CEA - Thomas Proslier

10:09 Plasma Electrolytic Polishing for SRF - Eduard Chyhyrynets

10:32 Rapid electropolishing of niobium in non-aqueous solvents - Qingwei Chu
10:55 Coffee break
Coffee break
10:55 - 11:15
Room: Cafeteria Bat.102
11:15 SRF Thin Films Characterization
11:15 - 13:10
Room: Auditorium Joliot-Curie
Contributions

11:15 CW mode test and electromagnetic-thermal simulation of conduction-cooled SRF cavities at PKU - Manqian Ren (Peking University)

11:38 RF Characterisation of Planar Thin Film Coated Sample - Daniel Seal (Lancaster University/Cockcroft Institute)

12:01 Progress in the design and testing of thin film on longitudinal split RF cavity - Nathan Leicester

12:24 Development of 1.3 GHz Cavity Test Facilities - Oleg Malyshev (UKRI/STFC Daresbury Laboratory)

12:47 First magnetic field penetration results of Multilayer samples and A15 materials for the use in SRF applications. - Liam Smith
13:10 Lunch break
Lunch break
13:10 - 14:45

14:45 Lab's visit

14:45 - 17:10

19:30 Workshop dinner
Workshop dinner
19:30 - 23:00
Thursday, 19 September 2024
09:00 SRF Thin Films Characterization
09:00 - 10:55
Room: Auditorium Joliot-Curie
Contributions

09:00 Depth-resolved characterization of superconductor-superconductor bilayer properties beneficial for SRF applications - Md Asaduzzaman (CA-University of Victoria, Canada)

09:33 Positron annihilation spectroscopy: pursuing point defects in superconducting film - Sebastian Klug

10:06 Enhancement of magnetic flux expulsion in multilayer structures - Dan Turner (CERN)

10:29 Thermal Conductance measurements of SIS & Nb3Sn coated samples at cryogenic temperatures - Marc Wenskat
10:55 coffee break
coffee break
10:55 - 11:15
Room: Cafeteria Bat.102
11:15 Functional Layers -Synergies
11:15 - 12:24
Room: Auditorium Joliot-Curie
Contributions

11:15 Surface engineering by atomic layer deposition and heat treatment for 3D Niobium resonators for applications in superconducting qubits - Yasmine Kalboussi

11:38 Point Contact Tunneling Spectroscopy for Qubits and SRF cavities - Ivana Curci (CEA)

12:01 Atomic layer deposition of Ta2O5 - a new material for coating cavities - Marco Voige (UHH/ DESY)
12:24 Lunch break
Lunch break
12:24 - 13:49
13:49 Functional Layers -Synergies
13:49 - 15:28
Room: Auditorium Joliot-Curie
Contributions

13:49 Thin films to mitigate multipacting - Mathieu Lafarie Thomas Proslier

14:12 Status of the Inner-wall Thermal Conducting Film (ITCF) Study - Didi Luo (IMP CAS)

14:35 Characterization of PEALD Coated Thin Films for SRF Cavity Research - Lea Sophie Preece

14:58 Discussion time
15:28 coffee beak
coffee beak
15:28 - 15:48
Room: Cafeteria Bat.102
15:48 Perspective of SRF thin films in accelerators and other applications
15:48 - 17:04
Room: Auditorium Joliot-Curie
Contributions

15:48 Exploring the perspectives of superconducting materials in SRF for quantum sensing - Enrico Silva

16:11 SRF compact accelerators - Graeme Campbell Burt (Lancaster University (GB))

16:44 Closing remarks
Friday, 20 September 2024
09:00 Thin films Roadmap (in common with IFAST WP9)
09:00 - 10:30
Room: Salle des Conseils
Contributions

09:00 IFAST report - Claire Antoine (CEA)

09:30 CERN roadmap for thin films R&D - Walter Venturini Delsolaro (CERN)

10:00 Thin film road map in Snowmass - Anne-Marie Valente-Feliciano
10:30 Coffee break
Coffee break
10:30 - 11:00
Room: Cafeteria Bat.102
11:00 Thin films Roadmap (in common with IFAST WP9)
11:00 - 13:00
Room: Salle des Conseils
Contributions

11:00 Roadmap discussion 1: R&D on Nb/Cu

11:30 Roadmap discussion 2: Nb3Sn

12:00 Roadmap discussion 3: Other Superconductors

12:30 Roadmap discussion 4: R&D on SIS
13:00 lunch break
lunch break
13:00 - 14:30
14:30 Thin films Roadmap (in common with IFAST WP9)
14:30 - 16:00
Room: Salle des Conseils
Contributions

14:30 Roadmap discussion 5: R&D on Surface functionalization

15:00 Roadmap discussion 6: Copper substrate fabrication and surface preparation

15:30 Roadmap discussion 7: General characterization/surface sciences
16:00 Coffee break
Coffee break
16:00 - 16:30
Room: Auditorium Joliot-Curie
16:30 Thin films Roadmap (in common with IFAST WP9)
16:30 - 18:00
Room: Auditorium Joliot-Curie
Contributions

16:30 Roadmap discussion 8: Cavity preparation and RF testing

17:00 Roadmap discussion 9: theory

17:30 Roadmap discussion 10: Industrialization