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Observation of a Fast Single-Bunch Transverse Instability on Protons in the SPS
The longitudinal impedance of the SPS has been reduced significantly by hardware modifications over the last years and the threshold for longitudinal instabilities increased accordingly. We now observe a fast transverse instability on high-intensity single bunches of low longitudinal emittance. The...
| Autores principales: | , , , , |
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| Lenguaje: | eng |
| Publicado: |
2004
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| Materias: | |
| Acceso en línea: | http://cds.cern.ch/record/791210 |
| Sumario: | The longitudinal impedance of the SPS has been reduced significantly by hardware modifications over the last years and the threshold for longitudinal instabilities increased accordingly. We now observe a fast transverse instability on high-intensity single bunches of low longitudinal emittance. The main observed signature and the threshold dependence on beam parameters is described and compared with theoretical expectations and simulations. |
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