An 805 MHz disk and washer accelerating structure with coaxial coupler for the Fermilab upgrade
Conference
·
OSTI ID:5288826
- Fermi National Accelerator Lab., Batavia, IL (USA)
- Science Applications International Corp., Albuquerque, NM (USA)
The Disk and Washer (DAW) structure with four bi-periodic tees to support the washers has been studied at Fermilab for the Linac Upgrade by constructing two, 805 MHz, one-meter sections joined by a coaxial coupler. The coupler provides an rf drive port, an adjustable tuner, a vacuum port, and an enclosure for the installation of beam focussing and monitoring devices. This configuration is suitable for a high beta proton linear accelerator. The bi-periodic tee supports in the DAW structure suppress the TM{sub 11} mode at the operating frequency which has been a problem with previous designs. Frequency-mode spectra have been calculated and measured as well as the quantities Q, R/Q, and ZT{sup 2}. The structure has been evacuated and operated at high power levels and high accelerating fields. 5 refs., 4 figs., 2 tabs.
- Research Organization:
- Fermi National Accelerator Lab., Batavia, IL (USA)
- Sponsoring Organization:
- DOE/ER
- DOE Contract Number:
- AC02-76CH03000
- OSTI ID:
- 5288826
- Report Number(s):
- FNAL/C-89/197; CONF-890803--50; ON: DE90005240
- Country of Publication:
- United States
- Language:
- English
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