OPTIMIZING CENTRIFUGAL BARREL POLISHING FOR MIRROR FINISH SRF CAVITY AND RF TESTS AT JEFFERSON LAB
Conference
·
OSTI ID:1048063
We performed Centrifugal Barrel Polishing (CBP) on a 1.3 GHz fine grain TESLA single cell cavity and 1.5 GHz fine grain CEBAF high gradient superconducting radio frequency (SRF) single cell cavity following a modified recipe originally developed at Fermi National Accelerator Lab (FNAL). We were able to obtain a mirror like surface similar to that obtained at FNAL, while reducing the number of CBP steps and total processing time. This paper will discuss the change in surface and subsequent cavity performance post CBP, after a 800 C bake (no pre-bake chemistry) and minimal controlled electro-polishing (10 micron). In addition to Q vs. E{sub ACC} thermometry mapping with preheating characteristics and optical inspection of the cavity after CBP will also be shown.
- Research Organization:
- Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- DOE Contract Number:
- AC05-06OR23177
- OSTI ID:
- 1048063
- Report Number(s):
- JLAB-ACC-12-1553; DOE/OR/23177-2147
- Country of Publication:
- United States
- Language:
- English
Similar Records
Exploration of material removal rate of srf elliptical cavities as a function of media type and cavity shape on niobium and copper using centrifugal barrel polishing (cbp)
R&D progress in SRF surface preparation with centrifugal barrel polishing (cbp) for both Nb and Cu
Detailed surface analysis of incremental Centrifugal Barrel Polishing (CBP) and EP of single-crystal niobium samples.
Conference
·
Sun Sep 01 00:00:00 EDT 2013
·
OSTI ID:1164402
R&D progress in SRF surface preparation with centrifugal barrel polishing (cbp) for both Nb and Cu
Conference
·
Sun Sep 01 00:00:00 EDT 2013
·
OSTI ID:1164417
Detailed surface analysis of incremental Centrifugal Barrel Polishing (CBP) and EP of single-crystal niobium samples.
Conference
·
Fri Jun 01 00:00:00 EDT 2012
·
OSTI ID:1994857