Login

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

16–20 Sept 2024
Bat. 100, Université Paris-Saclay, France
Europe/Zurich timezone

Session

Advanced substrates

18 Sept 2024, 09:00
Auditorium Joliot-Curie (Bat. 100, Université Paris-Saclay, France)

Auditorium Joliot-Curie

Bat. 100, Université Paris-Saclay, France

Batiment 100, Orsay Campus

Description

Surface cleaning, atmospheric plasmas; cavity substrate fabrication (electroplating, seamless cavities, 3D-manufacturing…)

Presentation materials

There are no materials yet.

  1. 79. Copper full-seamless substrate cavity manufactured by hydroforming
    Hayato Araki (High Energy Accelerator Research Organization (JP))
    18/09/2024, 09:00
    Advanced Substrates

    The general method for manufacturing superconducting accelerating cavities with an elliptical cell shape is to press-form niobium sheets into a bowl shape and join them together using electron beam welding (EBW). Research on manufacturing cavities at a low-cost using hydroforming instead of EBW has been achieved. Another research has been actively conducted in recent years to manufacture the...

    Go to contribution page
  2. 80. Additive manufacturing at LNL
    Davide Ford
    18/09/2024, 09:23
    Advanced Substrates
  3. 81. 3D additive fabrication of Cu cavity with cooling channeling at CEA
    Dr Thomas Proslier
    18/09/2024, 09:46
    Advanced Substrates

    One of the most promising avenues of research for next-generation superconducting cavities is to increase the operating temperature ≥ 4.2 K by depositing new thin-film superconducting materials with temperatures at least twice as high as the Niobium currently used. These possibilities pave the way for the development of new cooling techniques (cryocooler with liquid He cooling circuits...

    Go to contribution page
  4. 82. Plasma Electrolytic Polishing for SRF
    Eduard Chyhyrynets
    18/09/2024, 10:09
    Advanced Substrates

    "The performance of superconducting radio frequency (SRF) cavities is critically influenced by surface preparation. Traditionally, electropolishing (EP) has been employed to achieve a clean, low-roughness surface on both niobium (Nb) and copper (Cu) substrates, despite requiring harsh and corrosive acids. Since 2019, our research at LNL has focused on an alternative approach: Plasma...

    Go to contribution page
  5. 83. Rapid electropolishing of niobium in non-aqueous solvents
    Qingwei Chu
    18/09/2024, 10:32
    Advanced Substrates

    Niobium EP and BCP progress has the problems of slow polishing rate and high risk of electrolyte. In order to solve this, our team uses a less hazardous and more environmentally-friendly HF-free electrolytes, non-aqueous solvent as electrolyte. High efficiency polishing of niobium can be achieved by applying high pulse voltage. The polishing rate is dozens or even hundreds of times that of...

    Go to contribution page
Building timetable...