Comparison of buffered chemical polished and electropolished 3.9 GHz cavities
Conference
·
OSTI ID:967170
Five 3.9 GHz 9 cell cavities have been measured for the DESY FLASH module. These cavities were BCP processed and reached gradients of typically about 25 MV/m with Q drop starting at about 20 MV/m. Recently a few one cell cavities have been processed with EP and at least one has tested to a gradient of 30 MV/m with Q drop starting at about 25 MV/m. We will compare the results and give an update to the thermal analysis in relation to global thermal breakdown at 3.9 GHz.
- Research Organization:
- Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC02-07CH11359
- OSTI ID:
- 967170
- Report Number(s):
- FERMILAB-CONF-09-482-AD-TD; TRN: US0904311
- Resource Relation:
- Conference: Presented at 14th International Conference on RF Superconductivity, Berlin, Germany, 20-25 Sep 2009
- Country of Publication:
- United States
- Language:
- English
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