Continued Conditioning of the Fermilab 400 MeV linac high-gradient side-couple cavities
The high energy portion of the Fermilab 400 MeV Linac is made of high gradient (37 MV/meter surface field) side-coupled cavity section which were conditioned over a 10 month period before their installation in August of 1993. We have continued to monitor the conditioning of these cavities since that time while the cavities have been operation, and those results are presented here. The sparking rate and the X-ray production are measured and compared with the 1992/1993 pre-operational and 1993/1994 early operational measurements. These rates are consistent with a continued diminishing of these phenomena. Predictions and spark management strategies presented in earlier reports are evaluated in light of present experiences. We also have been measuring the sparking rate within this structure with and without our 50 mA peak beam. We find that the sparking rate is 20% higher with beam in the accelerator.
- Research Organization:
- Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC02-76CH03000
- OSTI ID:
- 378618
- Report Number(s):
- FNAL/C-96/259; CONF-9608123-32; ON: DE96050406; TRN: 96:025651
- Resource Relation:
- Conference: 18. international linac conference, Geneva (Switzerland), 26-30 Aug 1996; Other Information: PBD: Aug 1996
- Country of Publication:
- United States
- Language:
- English
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