SRF2025 - 22nd International Conference on RF Superconductivity

Session

Friday Oral Session: A

FRA

26 Sept 2025, 08:30

Ito International Research Center

92. PIP-II SRF cavities performance and field emission mitigation strategy (FRA01)

Jeremiah Holzbauer (Fermi National Accelerator Laboratory)

26/09/2025, 08:30

MC3: Cavities

Invited Oral Presentation

PIP-II project is based on 5 types of SRF cavities. Developing the linac includes several advances in the SRF cavity processing and cryomodule design and assembly. This talk will summarize these advances, report recent results, and plans for further developments.

40. SRF technology challenges for the electron ion collider (FRA02)

Zachary Conway (Thomas Jefferson National Accelerator Facility)

26/09/2025, 08:50

MC4: SRF Technologies

Invited Oral Presentation

The Electron Ion Collider (EIC) pushes the limits of superconducting radio frequency systems to fulfil a variety of accelerator physics requirements. Thomas Jefferson National Accelerator Facility (TJNAF) and Brookhaven National Laboratory (BNL) in partnership are leading an international collaboration designing and building 46 independent superconducting cavity resonators comprised of 4...

56. Production of 1.3 GHz cavities for SHINE project (FRA03)

Hongtao Hou (Shanghai Advanced Research Institute)

26/09/2025, 09:10

MC3: Cavities

Invited Oral Presentation

The production of over hundreds of 1.3 GHz high-Q superconducting cavities for the Shanghai High repetition rate XFEL and extreme light facility (SHINE) has now been successfully carried out. Both high temperature nitrogen doping (N-doping) recipe and mild temperature (Mid-T) baking recipe have been adopted to achieve high-Q performance. The main challenge for SHINE mass production is to...

41. Cryogenics for SRF accelerator facilities: recent developments and challenges (FRA04)

Nusair Hasan (Facility for Rare Isotope Beams)

26/09/2025, 09:30

MC4: SRF Technologies

Invited Oral Presentation

Large-scale 4.5 K and 2.0 K helium cryogenic systems are a foundational support system for modern superconducting accelerator facilities. These are highly energy intensive systems. Large-scale efficient helium systems presently require approx. 800 W/W of cooling at 2 Kelvin (30 mbar) and 250 W/W at 4.5K. Due to the nature of the application, these systems require very high reliability...

39. SRF Cavity Development for the FCC-ee at 400/800 MHz (FRA05)

Shahnam Gorgi Zadeh (European Organization for Nuclear Research)

26/09/2025, 09:50

MC3: Cavities

Invited Oral Presentation

FCC-ee is the baseline for future lepton collider projects at CERN. To meet specific physics objectives, CERN is developing two types of accelerating cavities in collaboration with international partners. For low-energy applications, namely the Z pole, W, and H physics cases, CERN is working on 400 MHz seamless cavities with Nb-coating technology, in partnership with KEK. Prototype cavity...

13. RF dipole cryomodule tests (FRA06)

Nuria Valverde Alonso (European Organization for Nuclear Research)

26/09/2025, 10:10

MC3: Cavities

Invited Oral Presentation

The first RF Dipole crab cavity cryomodule, jointly developed by CERN and UK-STFC under the HL-LHC project, was built for proton beam tests in the SPS machine. In 2024, the cryomodule was tested in the CERN horizontal test facility prior to its installation in the SPS. During acceptance tests, two critical non-conformities related to the fundamental power couplers were identified. This paper...