Higher order mode damping studies on the PEP-II B-Factory RF cavity

Conference · Sat Feb 29 23:00:00 EST 1992

OSTI ID:10133622

Rimmer, R; Goldberg, D; Lambertson, G; Voelker, F ^[1]; Ko, K; Kroll, N; Pendleton, R; Schwarz, H ^[2]; Adams, F; De Jong, M ^[3]

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1. Lawrence Berkeley Lab., CA (United States)
2. Stanford Linear Accelerator Center, Menlo Park, CA (United States)
3. Atomic Energy of Canada Ltd., Chalk River, ON (Canada)

We describe studies of the higher-order-mode (HOM) properties of the prototype 476 MHz RF cavity for the proposed PEP-II B-Factory and a waveguide damping scheme to reduce possible HOM-driven coupled-bunch beam instability growth. Numerical studies include modelling of the HOM spectrum using MAFIA and ARGUS, and calculation of the loaded Q`s of the damped modes using data from these codes and the Kroll-Yu method. We discuss briefly the experimental investigations of the modes, which will be made in a full-size low-power test cavity, using probes, wire excitation and bead perturbation methods.

• Research Organization: Lawrence Berkeley Lab., CA (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC03-76SF00098; AC03-76SF00515
• OSTI ID: 10133622
• Report Number(s): LBL--32549; CONF-920315--44; ESG--203; ABC--74; ON: DE93007718
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
430303
B MESONS
CAVITY RESONATORS
DAMPING
EXPERIMENTAL FACILITIES AND EQUIPMENT
INSTABILITY
MESON FACTORIES
PEP STORAGE RINGS
RF SYSTEMS
WAVEGUIDES