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Stochastic Cooling of Heavy Ions in the HESR |
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- R. Stassen, B. Breitkreutz, G. Schug, H. Stockhorst
FZJ, Jülich, Germany
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Due to the modularized start version (MSV) of the FAIR project with the postponed NESR, the HESR (High Energy Storage Ring) became very attractive for experiments with heavy ions. Although the HESR is optimized for the storage of antiprotons it is also well suited for heavy-ion beams with slightly changes in the optics. Within the MSV only stochastic cooling and no e-cooling will be available, but even the main 2-4 GHz stochastic cooling system will be capable to fulfill the beam requirements for heavy ions. Most critical parts of the active elements are the high power amplifiers. The stochastic cooling amplifiers for the HESR will be based on new GaN devices. Nonlinearities of these devices necessitate a dedicated analysis for use in stochastic cooling systems.
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Slides MOYAUD02 [5.720 MB]
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