Progresses in the studies of adiabatic splitting of charged particle beams by crossing nonlinear resonances
The multiturn extraction from a circular particle accelerator is performed by trapping the beam inside stable islands of the horizontal phase space. In general, by crossing a resonance of order n, n+1 beamlets are created whenever the resonance is stable, whereas if the resonance is unstable the bea...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
American Physical Society
2009-01-01
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| Series: | Physical Review Special Topics. Accelerators and Beams |
| Online Access: | http://doi.org/10.1103/PhysRevSTAB.12.014001 |
| _version_ | 1828973784721260544 |
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| author | A. Franchi S. Gilardoni M. Giovannozzi |
| author_facet | A. Franchi S. Gilardoni M. Giovannozzi |
| author_sort | A. Franchi |
| collection | DOAJ |
| description | The multiturn extraction from a circular particle accelerator is performed by trapping the beam inside stable islands of the horizontal phase space. In general, by crossing a resonance of order n, n+1 beamlets are created whenever the resonance is stable, whereas if the resonance is unstable the beam is split in n parts. Islands are generated by nonlinear magnetic fields, whereas the trapping is realized by means of a given tune variation so to cross adiabatically a resonance. Experiments at the CERN Proton Synchrotron carried out in 2007 gave the evidence of protons trapped in stable islands while crossing the one-third and one-fifth resonances. Dedicated experiments were also carried out to study the trapping process and its reversibility properties. The results of these measurement campaigns are presented and discussed in this paper. |
| first_indexed | 2024-12-14T13:51:19Z |
| format | Article |
| id | doaj.art-6324b04aed714b57b5199b2911977503 |
| institution | Directory Open Access Journal |
| issn | 1098-4402 |
| language | English |
| last_indexed | 2024-12-14T13:51:19Z |
| publishDate | 2009-01-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | Physical Review Special Topics. Accelerators and Beams |
| spelling | doaj.art-6324b04aed714b57b5199b29119775032022-12-21T22:59:04ZengAmerican Physical SocietyPhysical Review Special Topics. Accelerators and Beams1098-44022009-01-0112101400110.1103/PhysRevSTAB.12.014001Progresses in the studies of adiabatic splitting of charged particle beams by crossing nonlinear resonancesA. FranchiS. GilardoniM. GiovannozziThe multiturn extraction from a circular particle accelerator is performed by trapping the beam inside stable islands of the horizontal phase space. In general, by crossing a resonance of order n, n+1 beamlets are created whenever the resonance is stable, whereas if the resonance is unstable the beam is split in n parts. Islands are generated by nonlinear magnetic fields, whereas the trapping is realized by means of a given tune variation so to cross adiabatically a resonance. Experiments at the CERN Proton Synchrotron carried out in 2007 gave the evidence of protons trapped in stable islands while crossing the one-third and one-fifth resonances. Dedicated experiments were also carried out to study the trapping process and its reversibility properties. The results of these measurement campaigns are presented and discussed in this paper.http://doi.org/10.1103/PhysRevSTAB.12.014001 |
| spellingShingle | A. Franchi S. Gilardoni M. Giovannozzi Progresses in the studies of adiabatic splitting of charged particle beams by crossing nonlinear resonances Physical Review Special Topics. Accelerators and Beams |
| title | Progresses in the studies of adiabatic splitting of charged particle beams by crossing nonlinear resonances |
| title_full | Progresses in the studies of adiabatic splitting of charged particle beams by crossing nonlinear resonances |
| title_fullStr | Progresses in the studies of adiabatic splitting of charged particle beams by crossing nonlinear resonances |
| title_full_unstemmed | Progresses in the studies of adiabatic splitting of charged particle beams by crossing nonlinear resonances |
| title_short | Progresses in the studies of adiabatic splitting of charged particle beams by crossing nonlinear resonances |
| title_sort | progresses in the studies of adiabatic splitting of charged particle beams by crossing nonlinear resonances |
| url | http://doi.org/10.1103/PhysRevSTAB.12.014001 |
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