Published June 2003
| Version v1
Report
Conditioning of input couplers for KEKB superconducting cavities
Creators
- 1. Mitsubishi Electric Corp., Tokyo (Japan)
- 2. High Energy Accelerator Research Organization, Tsukuba, Ibaraki (Japan)
Description
Four additional superconducting cavities were installed in the KEKB HER ring in August 2000. Up to now the superconducting cavities have been operated under a beam of 870 mA in the HER. The input coupler has been used to feed a power exceeding 380 kW stably with high current. We describe the status of conditioning for four couplers. The KEKB coupler has multipacting power levels below 300 kW. After enough processing with bias voltage, no pressure increase could be observed at power feeds up to 300 kW. RF processing with bias voltage is effective in suppressing multipacting. We will discuss the multipacting power levels, the discharge near the window and processing for beam operation. (author)
Additional details
Publishing Information
- Imprint Title
- SRF2001: Proceedings of the 10th workshop on RF superconductivity
- Imprint Pagination
- 685 p.
- Journal Page Range
- p. 565-569
- Report number
- KEK-PROC--2003-2
Conference
- Title
- 10. workshop on RF superconductivity
- Acronym
- SRF2001
- Dates
- 6-11 Sep 2001
- Place
- Tsukuba, Ibaraki (Japan)
INIS
- Country of Publication
- Japan
- Country of Input or Organization
- Japan
- INIS RN
- 36063305
- Subject category
- S43: PARTICLE ACCELERATORS;
- Resource subtype / Literary indicator
- Conference, Non-conventional Literature
- Descriptors DEI
- AGING; COLLIDING BEAMS; ELECTRIC DISCHARGES; MICROWAVE POWER TRANSMISSION; PROCESSING; STABILITY; STORAGE RINGS; SUPERCONDUCTING CAVITY RESONATORS; SURFACE CLEANING; WINDOWS
- Descriptors DEC
- BEAMS; CAVITY RESONATORS; CLEANING; ELECTRONIC EQUIPMENT; EQUIPMENT; OPENINGS; POWER TRANSMISSION; RESONATORS; SUPERCONDUCTING DEVICES; SURFACE FINISHING
Optional Information
- Notes
- 4 refs., 10 figs., 2 tabs.