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CEC/ICMC 2025 Abstracts & Technical Program

18–22 May 2025
Peppermill Reno
US/Pacific timezone

Conference Management: Centennial Conferences

Session

M2Po3C - Nb-Based Superconductors

20 May 2025, 14:00
Exhibit Hall, Tuscany Ballroom

Exhibit Hall, Tuscany Ballroom

Conveners

M2Po3C - Nb-Based Superconductors

  • Karl Hartwig
  • Zu hawn Sung

Presentation materials

There are no materials yet.

  1. 358. M2Po3C-01: Investigating the microstructure of cold-worked and annealed SRF Niobium using Shannon Entropy
    Trent Boritz (Florida State University)
    20/05/2025, 14:00
    Poster

    Residual trapped magnetic flux suppresses the quality factor of SRF Nb cavities and thus microstructural features that can trap flux are of particular interest for developing higher performance cavities. We have been investigating tools to help quantify the microstructure of Nb to make it easier to compare microstructures resulting from different cavity processing routes. EBSD mapping is the...

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  2. 341. M2Po3C-02: Enhancing Flux Expulsion Through Microstructural Control in Superconducting Radiofrequency Cavities Made from Cold-Worked Niobium
    Dr Santosh Chetri (Applied Superconductivity Center, NHMFL-FSU, Tallahassee)
    20/05/2025, 14:00
    Poster

    A well-known source of RF losses that lower the performance of superconducting radio frequency cavities is due to the residual magnetic flux trapped during cool-down. In this presentation, we demonstrate how manipulating the niobium microstructure by changing the strain state of the initial Nb sheet for an elliptical cavity geometry, can improve the flux expulsion behavior. In this study we...

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  3. 355. M2Po3C-03: Impact of retained cold work on the microstructure and fabrication of SRF Nb cavities
    Santosh Chetri (Applied Superconductivity Center, NHMFL, FSU)
    20/05/2025, 14:00
    Poster

    High cryogenic efficiency, measured as the quality factor (Q$_0$, 2K), has been made possible in Nb superconducting radio frequency (SRF) cavities due to advances in understanding the sub-surface micro-chemistry and structure developed in cavity processing. Recent experiments in SRF cavities have demonstrated the role of bulk cavity microstructure and its influence on trapped residual magnetic...

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  4. 364. M2Po3C-04: Characterization of NbTi wires for the electron-ion collider project
    Jun Lu (National High Magnetic Field Laboratory, USA)
    20/05/2025, 14:00
    Poster

    The Electron-Ion Collider (EIC) is a proposed machine to explore the behavior of the fundamental particles and forces that bind atomic nuclei together. The design and construction of the EIC are underway at Brookhaven National Laboratory (BNL) in collaboration with Thomas Jefferson National Accelerator Facility. EIC will use several different types of superconducting strands for magnets near...

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  5. 427. M2Po3C-05: Progress of APC and high Cp Nb3Sn conductors in Hyper Tech
    Dr Xuan Peng
    20/05/2025, 14:00
    Poster

    In this paper we will update the progress of the two types of advanced Nb3Sn conductors manufactured in Hyper Tech. One is ternary APC (Artificial Pinning Center) Nb3Sn strand by using internal oxidation technique to increase Jc in high field and lower the magnetization in low field; The other one is high specific heat (Cp) Nb3Sn strand to increase the energy margin against quenching by...

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