Particle tracking study of the injection process with field interferences in a rapid cycling synchrotron
The large-bore magnets in the injection system of a high-intensity proton synchrotron are placed close to each other as compared to their bore sizes. In such cases, the magnetic cores interfere with the fringe fields of adjacent magnets. Moreover, the incoming beam passes through several kinds of ti...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
American Physical Society
2008-06-01
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| Series: | Physical Review Special Topics. Accelerators and Beams |
| Online Access: | http://doi.org/10.1103/PhysRevSTAB.11.064201 |
| _version_ | 1818380808705015808 |
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| author | M. J. Shirakata H. Fujimori Y. Irie T. Takayanagi |
| author_facet | M. J. Shirakata H. Fujimori Y. Irie T. Takayanagi |
| author_sort | M. J. Shirakata |
| collection | DOAJ |
| description | The large-bore magnets in the injection system of a high-intensity proton synchrotron are placed close to each other as compared to their bore sizes. In such cases, the magnetic cores interfere with the fringe fields of adjacent magnets. Moreover, the incoming beam passes through several kinds of time-varying fields along the injection line and the nonlinear field region of the ring quadrupole magnet. The beam behavior under these conditions is analyzed by using the Runge-Kutta method. Although the interference of the magnetic fields does not result in emittance growth, it produces a closed-orbit distortion. Field fluctuations of the time-varying field cause an emittance growth and the nonlinear field deforms the beam profile in phase space of the incoming beam. These effects lead to the modification of the injection scheme. This study focuses on the particle tracking with magnetic field interferences during the early stage of beam commissioning, when the space charge force is not important. |
| first_indexed | 2024-12-14T02:24:34Z |
| format | Article |
| id | doaj.art-58aedece114c497bbad2e804b13c715e |
| institution | Directory Open Access Journal |
| issn | 1098-4402 |
| language | English |
| last_indexed | 2024-12-14T02:24:34Z |
| publishDate | 2008-06-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | Physical Review Special Topics. Accelerators and Beams |
| spelling | doaj.art-58aedece114c497bbad2e804b13c715e2022-12-21T23:20:24ZengAmerican Physical SocietyPhysical Review Special Topics. Accelerators and Beams1098-44022008-06-0111606420110.1103/PhysRevSTAB.11.064201Particle tracking study of the injection process with field interferences in a rapid cycling synchrotronM. J. ShirakataH. FujimoriY. IrieT. TakayanagiThe large-bore magnets in the injection system of a high-intensity proton synchrotron are placed close to each other as compared to their bore sizes. In such cases, the magnetic cores interfere with the fringe fields of adjacent magnets. Moreover, the incoming beam passes through several kinds of time-varying fields along the injection line and the nonlinear field region of the ring quadrupole magnet. The beam behavior under these conditions is analyzed by using the Runge-Kutta method. Although the interference of the magnetic fields does not result in emittance growth, it produces a closed-orbit distortion. Field fluctuations of the time-varying field cause an emittance growth and the nonlinear field deforms the beam profile in phase space of the incoming beam. These effects lead to the modification of the injection scheme. This study focuses on the particle tracking with magnetic field interferences during the early stage of beam commissioning, when the space charge force is not important.http://doi.org/10.1103/PhysRevSTAB.11.064201 |
| spellingShingle | M. J. Shirakata H. Fujimori Y. Irie T. Takayanagi Particle tracking study of the injection process with field interferences in a rapid cycling synchrotron Physical Review Special Topics. Accelerators and Beams |
| title | Particle tracking study of the injection process with field interferences in a rapid cycling synchrotron |
| title_full | Particle tracking study of the injection process with field interferences in a rapid cycling synchrotron |
| title_fullStr | Particle tracking study of the injection process with field interferences in a rapid cycling synchrotron |
| title_full_unstemmed | Particle tracking study of the injection process with field interferences in a rapid cycling synchrotron |
| title_short | Particle tracking study of the injection process with field interferences in a rapid cycling synchrotron |
| title_sort | particle tracking study of the injection process with field interferences in a rapid cycling synchrotron |
| url | http://doi.org/10.1103/PhysRevSTAB.11.064201 |
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