An rf cavity for the B-Factory
- Lawrence Berkeley Lab., CA (USA)
- Stanford Linear Accelerator Center, Menlo Park, CA (USA)
- California Univ., San Diego, CA (USA) Stanford Linear Accelerator Center, Menlo Park, CA (USA)
The paper describes the proposed design for the 476 MHz accelerating cavity for the SLAC/LBL/LLNL B-Factory. This machine will require a high power throughput to the beam because of the large synchrotron radiation losses, and very low impedances for the higher order modes because of the high current proposed. Use of conventional construction in copper means that careful consideration has to be paid to the problem of cooling. The need for a high shunt impedance for the accelerating mode dictated the use of a re-entrant shape. This maximized the impedance of the fundamental mode with respect to the troublesome longitudinal and deflecting higher order modes, when compared to open or bell shaped'' designs. A specialized damping scheme was employed to reduce the higher order mode impedances while sacrificing as little of the fundamental mode power as possible. This was required to suppress the growth of coupled bunch beam instabilities and minimize the workload of the feedback system needed to control them. A window design capable of handling the high power was also required. 8 refs., 1 fig., 2 tabs.
- Research Organization:
- Lawrence Berkeley Lab., CA (USA)
- Sponsoring Organization:
- DOE; USDOE, Washington, DC (USA)
- DOE Contract Number:
- AC03-76SF00098
- OSTI ID:
- 5528972
- Report Number(s):
- LBL-30624; CONF-910505--320; ON: DE91014621
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
430300* -- Particle Accelerators-- Auxiliaries & Components
ACCELERATORS
B MESONS
BEAM BUNCHING
BEAM DYNAMICS
BOSONS
BREMSSTRAHLUNG
CAVITY RESONATORS
DESIGN
ELECTROMAGNETIC RADIATION
ELECTRONIC EQUIPMENT
ELEMENTARY PARTICLES
EQUIPMENT
HADRONS
MESON FACTORIES
MESONS
PSEUDOSCALAR MESONS
RADIATIONS
RESONATORS
RF SYSTEMS
SYNCHROTRON RADIATION
WAVEGUIDES