TTC 2026 Meeting, CEA-CNRS-Université Paris Saclay, 9-12 June 2026, Gif sur Yvette, France

Session

WG-1: Latest Activities on High-G and High-Q Performances

9 juin 2026, 11:00

Theatre Joel Rousseau - Central Supelec

Présidents de session

WG-1: Latest Activities on High-G and High-Q Performances: session 1 - Surface Processing Toward Project Realization

• Jinfang Chen (SARI)
• Daniel Bafia (FNAL)
• Lea Steder (DESY)

WG-1: Latest Activities on High-G and High-Q Performances: session 2 - Surface Processing R&D

• Lea Steder (DESY)
• Jinfang Chen (SARI)
• Daniel Bafia (FNAL)

WG-1: Latest Activities on High-G and High-Q Performances: session 3 - Theory + Sample studies

• Jinfang Chen (SARI)
• Daniel Bafia (FNAL)
• Lea Steder (DESY)

WG-1: Latest Activities on High-G and High-Q Performances: session 4 - Sample studies

• Lea Steder (DESY)
• Daniel Bafia (FNAL)
• Jinfang Chen (SARI)

11. Summary of Remote High Q/High Gradient Working Group

Dr Akira Miyazaki (CNRS/IN2P3/IJCLab)

09/06/2026 11:00

12. Recent result of 2-step baking at KEK

Eric Viklund (KEK)

09/06/2026 11:05

13. Recent progress of SHINE high-Q cavities

Yue Zong (SARI)

09/06/2026 11:23

14. Status and Results of Mid-Temperature Baking for PIP-II LB 650 MHz Cavities

Jacopo Bernardini (Fermilab)

09/06/2026 11:41

15. Results from mid-T bake applied to 1.5 GHz C75 5-cell cavities for CEBAF

Pashupati Dhakal (Jlab)

09/06/2026 11:59

16. Surface treatment platform construction and preliminary experiment for S3FEL

Shaohua Peng (IASF)

09/06/2026 12:17

17. Recent progress in high-frequency pulse electropolishing of niobium and SRF cavity in ionic liquid

Qingwei Chu (IMP)

09/06/2026 14:00

18. Enhancement of medium-temperature treated cavities for high-Q and high gradient

Julia Goedecke (DESY)

09/06/2026 14:18

19. Frequency shift measurements as indicator for SRF performance

Marc Wenskat (DESY)

09/06/2026 14:36

20. Crystalline ZrO2 Capping Layer with Atomically-Sharp Oxide-Superconductor Interface

Nathan Sitarman (Cornell)

09/06/2026 14:54

21. Progress in understanding magnetic-flux-entry in coated Nb using β-detected NMR

Ryan McFadden (Triumf)

09/06/2026 15:12

22. New insights in the multilayer theory of superconducting RF cavities OR Progress on the Microscopic Theory of Inhomogeneous Disordered Superconductors

Carlos Redondo-Herrero (IJCLab)

09/06/2026 16:00

23. Microwave Response of Superconductors with Paramagnetic Impurities

Mehdi Zrea (LSU)

09/06/2026 16:18

24. Correlating Nb-SRF Surface Processing with Evolution of Surface Electronic States

Malvika Tripathi (Fermilab)

09/06/2026 16:36

25. Investigating Impurity-Based Treatments in SRF Cavities through Coupled RF and Materials Characterization

Hannah Hu (Fermilab)

09/06/2026 16:54

26. Electropolishing-induced topographic defects in niobium: insights and implications for superconducting radio frequency applications

Eric Lechner (Jlab)

09/06/2026 17:12

27. Enhanced RF Performances in 1.3 GHz Nb Cavities via Mid-T Baking: Insights from Correlative Sample Studies

Zhaoxi Chen (ShanghaiTech University)

10/06/2026 11:00

28. The Origin of Medium-Temperature Baking Efficacy: Formation and Role of an Ordered Oxide Template

Didi Luo (IMP)

10/06/2026 11:18

29. Manipulation of Nb carbide during Mid-T bake : Impact of baking configuration and plasma treatment

Chahinez Boutelaa

10/06/2026 11:36

30. Field of first vortex penetration of inhomogeneous materials: Predictions via Ginzburg-Landau theory and comparison to magnetometry measurements

Lucas Wallace (University of Victoria)

10/06/2026 11:54

31. Studying the effect of metallographic polishing on trapped magnetic flux with CRAFT

Alex Cierpka (HZB)

10/06/2026 12:12