Longitudinal instabilities of bunched beams in the ISR
Conference
·
· IEEE Trans. Nucl. Sci.; (United States)
OSTI ID:7210333
Microwave instabilities occur in bunched beams in the ISR leading to a dilution of the phase space density and limiting the longitudinal density of the stacked beams. According to D. Boussard this instability can be described as a coasting beam instability inside bunches. Experimental investigations of this microwave instability support this theory and give a high frequency impedance Vertical bar Z/sub L/ Vertical bar /n approx. = 14 ohms. Injecting large currents in bunches of large area increases the threshold of this instability. The larger currents can produce coupled bunch mode instabilities which can be cured by a higher harmonic cavity.
- Research Organization:
- CERN, Geneva
- OSTI ID:
- 7210333
- Conference Information:
- Journal Name: IEEE Trans. Nucl. Sci.; (United States) Journal Volume: NS-24:3
- Country of Publication:
- United States
- Language:
- English
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