Advancements in HF-free bipolar pulsed electropolishing for next-generation superconducting cavities
- Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
Hydrofluoric acid (HF)-free bipolar pulsed electropolishing (BPEP) offers an environmentally sustainable alternative to conventional Buffered Chemical Polishing (BCP) and Electropolishing (EP) techniques for superconducting radiofrequency (SRF) cavities. Recent studies at Jefferson Lab have demonstrated that a single-cell 1.3 GHz niobium cavity processed using HF-free BPEP achieved an accelerating gradient Eacc of 35 MV/m with a quality factor Q0 of 1E10 at 2 K, following extensive research and optimization. This talk will highlight the challenges encountered in developing this technique, key insights gained from experimental studies, and ongoing efforts to enhance its capabilities. In particular, we will explore its potential for refining Nb3Sn-coated niobium cavities via vapor diffusion techniques and for electroplating Nb3Sn films onto various cavity substrates, contributing to the advancement of high-performance SRF systems.
- Research Organization:
- Thomas Jefferson National Accelerator Facility (TJNAF)
- Sponsoring Organization:
- USDOE Office of Science (SC), Nuclear Physics (NP)
- DOE Contract Number:
- AC05-06OR23177
- OSTI ID:
- 3001065
- Report Number(s):
- JLAB-ACC-25-4616; DOE/OR/23177-8058
- Country of Publication:
- United States
- Language:
- English
Similar Records
Advance in Vertical Buffered Electropolishing on Niobium for Particle Accelerators*
Commissioning of JLab Vertical Cavity Processing System for SRF Nb Single Cell and Multicell Cavity With HF-Free Pulse-Reverse Electopolishing
Vertical Testing and Preparation of an Acid-Free Electropolished SRF Cavity
Conference
·
Thu Sep 01 00:00:00 EDT 2011
·
OSTI ID:1029366
Commissioning of JLab Vertical Cavity Processing System for SRF Nb Single Cell and Multicell Cavity With HF-Free Pulse-Reverse Electopolishing
Conference
·
Sun Jul 01 00:00:00 EDT 2018
·
OSTI ID:1473842
Vertical Testing and Preparation of an Acid-Free Electropolished SRF Cavity
Technical Report
·
Mon Nov 28 23:00:00 EST 2016
·
OSTI ID:1568836