Two-beam instability in electron cooling
The drift motion of cooling electrons makes them able to respond to transverse perturbations of a cooled ion beam. This response may lead to dipole or quadrupole transverse instabilities at specific longitudinal wave numbers. While the dipole instabilities can be suppressed by a combination of the L...
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| Format: | Article |
| Language: | English |
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American Physical Society
2006-12-01
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| Series: | Physical Review Special Topics. Accelerators and Beams |
| Online Access: | http://doi.org/10.1103/PhysRevSTAB.9.120101 |
| _version_ | 1819109635858104320 |
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| author | A. Burov |
| author_facet | A. Burov |
| author_sort | A. Burov |
| collection | DOAJ |
| description | The drift motion of cooling electrons makes them able to respond to transverse perturbations of a cooled ion beam. This response may lead to dipole or quadrupole transverse instabilities at specific longitudinal wave numbers. While the dipole instabilities can be suppressed by a combination of the Landau damping, machine impedance, and the active damper, the quadrupole and higher order modes can lead to either emittance growth, or a lifetime degradation, or both. The growth rates of these instabilities are strongly determined by the machine x-y coupling. Thus, tuning out of the coupling resonance and/or reduction of the machine coupling can be an efficient remedy for these instabilities. |
| first_indexed | 2024-12-22T03:28:58Z |
| format | Article |
| id | doaj.art-17af724873cd4508b69e03cec40ed30f |
| institution | Directory Open Access Journal |
| issn | 1098-4402 |
| language | English |
| last_indexed | 2024-12-22T03:28:58Z |
| publishDate | 2006-12-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | Physical Review Special Topics. Accelerators and Beams |
| spelling | doaj.art-17af724873cd4508b69e03cec40ed30f2022-12-21T18:40:33ZengAmerican Physical SocietyPhysical Review Special Topics. Accelerators and Beams1098-44022006-12-0191212010110.1103/PhysRevSTAB.9.120101Two-beam instability in electron coolingA. BurovThe drift motion of cooling electrons makes them able to respond to transverse perturbations of a cooled ion beam. This response may lead to dipole or quadrupole transverse instabilities at specific longitudinal wave numbers. While the dipole instabilities can be suppressed by a combination of the Landau damping, machine impedance, and the active damper, the quadrupole and higher order modes can lead to either emittance growth, or a lifetime degradation, or both. The growth rates of these instabilities are strongly determined by the machine x-y coupling. Thus, tuning out of the coupling resonance and/or reduction of the machine coupling can be an efficient remedy for these instabilities.http://doi.org/10.1103/PhysRevSTAB.9.120101 |
| spellingShingle | A. Burov Two-beam instability in electron cooling Physical Review Special Topics. Accelerators and Beams |
| title | Two-beam instability in electron cooling |
| title_full | Two-beam instability in electron cooling |
| title_fullStr | Two-beam instability in electron cooling |
| title_full_unstemmed | Two-beam instability in electron cooling |
| title_short | Two-beam instability in electron cooling |
| title_sort | two beam instability in electron cooling |
| url | http://doi.org/10.1103/PhysRevSTAB.9.120101 |
| work_keys_str_mv | AT aburov twobeaminstabilityinelectroncooling |