dorsal/arxiv
View SchemaObservation of Vertical Betatron Sideband due to Electron Clouds in the KEKB LER
| Authors | J. W. Flanagan, K. Ohmi, H. Fukuma, S. Hiramatsu, M. Tobiyama, E. Perevedentsev |
|---|---|
| Categories | |
| ArXiv ID | physics/0407149 |
| URL | https://arxiv.org/abs/physics/0407149 |
| DOI | 10.1103/PhysRevLett.94.054801 |
| Journal | Phys.Rev.Lett. 94 (2005) 054801 |
Abstract
The effects of electron clouds on positively-charged beams have been an active area of research in recent years at particle accelerators around the world. Transverse beam-size blow-up due to electron clouds has been observed in some machines, and is considered to be a major limiting factor in the development of higher-current, higher-luminosity electron-positron colliders. The leading proposed mechanism for beam blow-up is the excitation of a fast head-tail instability due to short-range wakes within the electron cloud. We present here observations of betatron oscillation sidebands in bunch-by-bunch spectra that may provide direct evidence of such head-tail motion in a positron beam.
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"abstract": "The effects of electron clouds on positively-charged beams have been an\nactive area of research in recent years at particle accelerators around the\nworld. Transverse beam-size blow-up due to electron clouds has been observed in\nsome machines, and is considered to be a major limiting factor in the\ndevelopment of higher-current, higher-luminosity electron-positron colliders.\nThe leading proposed mechanism for beam blow-up is the excitation of a fast\nhead-tail instability due to short-range wakes within the electron cloud. We\npresent here observations of betatron oscillation sidebands in bunch-by-bunch\nspectra that may provide direct evidence of such head-tail motion in a positron\nbeam.",
"arxiv_id": "physics/0407149",
"authors": [
"J. W. Flanagan",
"K. Ohmi",
"H. Fukuma",
"S. Hiramatsu",
"M. Tobiyama",
"E. Perevedentsev"
],
"categories": [
"physics.acc-ph"
],
"doi": "10.1103/PhysRevLett.94.054801",
"journal_ref": "Phys.Rev.Lett. 94 (2005) 054801",
"title": "Observation of Vertical Betatron Sideband due to Electron Clouds in the KEKB LER",
"url": "https://arxiv.org/abs/physics/0407149"
},
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