Performance of Production SRF Cavities for CEBAF
Construction for the Continuous Electron Beam Accelerator Facility recirculating linac represents the largest scale application of superconducting rf (SRF) technology to date.Over 250 of the eventual into hermetic pairs and completed rf testing at 2.0 K. Among these, 52% demonstrated usable gradients greater than 10 MV/m.although the rf performance characteristics well exceed the CEBAF baseline requirements of Q0=2.4 * 10^9 at 5 MV/m, the usual limiting phenomena during production cavity testing is presented.The frequency with which performance is limited by quenching suggests that additional material advances may be required for applications which require the reliable achievement of accelerating gradients of more than 15 MV/m.The distributions of frequency and Q for a higher-order mode are also presented.
- Research Organization:
- Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC05-84ER40150
- OSTI ID:
- 954358
- Report Number(s):
- CEBAF-PR-93-18; DOE/ER/40150-212; TRN: US201014%%1139
- Resource Relation:
- Conference: Poster compiled for PAC 93
- Country of Publication:
- United States
- Language:
- English
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