Klystron equalization for RF feedback

Conference · Fri Jan 01 04:00:00 EST 1993

OSTI ID:6756640

Corredoura, P

The next generation of colliding beam storage rings support higher luminosities by significantly increasing the number of bunches and decreasing the spacing between respective bunches. The heavy beam loading requires large RF cavity detuning which drives several lower coupled bunch modes very strongly. One technique which has proven to be very successful in reducing the coupled bunch mode driving impedance is RF feedback around the klystron-cavity combination. The gain and bandwidth of the feedback loop is limited by the group delay around the feedback loop. Existing klystrons on the world market have not been optimized for this application and contribute a large portion of the total loop group delay. This paper describes a technique to reduce klystron group delay by adding an equalizing filter to the klystron RF drive. Such a filter was built and tested on a 500 kill klystron as part of the on going PEP-II R D effort here at SLAC.

• Research Organization: Stanford Linear Accelerator Center, Menlo Park, CA (United States)
• Sponsoring Organization: DOE; USDOE, Washington, DC (United States)
• DOE Contract Number: AC03-76SF00515
• OSTI ID: 6756640
• Report Number(s): SLAC-PUB-6049; CONF-9211172--1; ON: DE93007740
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
430303* -- Particle Accelerators-- Experimental Facilities & Equipment
BEAM BUNCHING
BEAM DYNAMICS
BEAMS
COLLIDING BEAMS
ELECTRON TUBES
ELECTRONIC EQUIPMENT
EQUIPMENT
FEEDBACK
FUNCTIONS
IMPEDANCE
KLYSTRONS
MICROWAVE EQUIPMENT
MICROWAVE TUBES
MODIFICATIONS
RF SYSTEMS
TRANSFER FUNCTIONS