Coherent synchrotron radiation free longitudinal bunch shaping using transverse deflecting cavities
Longitudinal bunch shaping is gaining increasing attention due to the large impact it has on modern accelerators. The existing methods for controlling the density profile fall into three categories: laser shaping, emittance exchange, or correlations between the energy and one of the other coordinate...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
American Physical Society
2020-07-01
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| Series: | Physical Review Accelerators and Beams |
| Online Access: | http://doi.org/10.1103/PhysRevAccelBeams.23.072803 |
| _version_ | 1818109238503800832 |
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| author | Gwanghui Ha John G. Power Jiahang Shao Manoel Conde Chunguang Jing |
| author_facet | Gwanghui Ha John G. Power Jiahang Shao Manoel Conde Chunguang Jing |
| author_sort | Gwanghui Ha |
| collection | DOAJ |
| description | Longitudinal bunch shaping is gaining increasing attention due to the large impact it has on modern accelerators. The existing methods for controlling the density profile fall into three categories: laser shaping, emittance exchange, or correlations between the energy and one of the other coordinates. These methods require either (i) dispersive elements (e.g., dipole magnet), which generate coherent synchrotron radiation, or (ii) shaping near the cathode, which can distort the profile due to space-charge effects. These collective effects significantly decrease shaping quality as the bunch charge increases. None of the existing methods are currently capable of shaping high-charge bunches. In this paper, we introduce a transverse deflecting cavity-based shaping method to avoid the impact of collective effects on the shaping process. In this method, a transverse deflecting cavity introduces the z-x correlation, and a transverse mask tailors the longitudinal density profile. This method provides high-quality shaping regardless of charge level and preserves the beam quality. |
| first_indexed | 2024-12-11T02:28:05Z |
| format | Article |
| id | doaj.art-67e5842094414a99902d1bb4d91c642e |
| institution | Directory Open Access Journal |
| issn | 2469-9888 |
| language | English |
| last_indexed | 2024-12-11T02:28:05Z |
| publishDate | 2020-07-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | Physical Review Accelerators and Beams |
| spelling | doaj.art-67e5842094414a99902d1bb4d91c642e2022-12-22T01:23:53ZengAmerican Physical SocietyPhysical Review Accelerators and Beams2469-98882020-07-0123707280310.1103/PhysRevAccelBeams.23.072803Coherent synchrotron radiation free longitudinal bunch shaping using transverse deflecting cavitiesGwanghui HaJohn G. PowerJiahang ShaoManoel CondeChunguang JingLongitudinal bunch shaping is gaining increasing attention due to the large impact it has on modern accelerators. The existing methods for controlling the density profile fall into three categories: laser shaping, emittance exchange, or correlations between the energy and one of the other coordinates. These methods require either (i) dispersive elements (e.g., dipole magnet), which generate coherent synchrotron radiation, or (ii) shaping near the cathode, which can distort the profile due to space-charge effects. These collective effects significantly decrease shaping quality as the bunch charge increases. None of the existing methods are currently capable of shaping high-charge bunches. In this paper, we introduce a transverse deflecting cavity-based shaping method to avoid the impact of collective effects on the shaping process. In this method, a transverse deflecting cavity introduces the z-x correlation, and a transverse mask tailors the longitudinal density profile. This method provides high-quality shaping regardless of charge level and preserves the beam quality.http://doi.org/10.1103/PhysRevAccelBeams.23.072803 |
| spellingShingle | Gwanghui Ha John G. Power Jiahang Shao Manoel Conde Chunguang Jing Coherent synchrotron radiation free longitudinal bunch shaping using transverse deflecting cavities Physical Review Accelerators and Beams |
| title | Coherent synchrotron radiation free longitudinal bunch shaping using transverse deflecting cavities |
| title_full | Coherent synchrotron radiation free longitudinal bunch shaping using transverse deflecting cavities |
| title_fullStr | Coherent synchrotron radiation free longitudinal bunch shaping using transverse deflecting cavities |
| title_full_unstemmed | Coherent synchrotron radiation free longitudinal bunch shaping using transverse deflecting cavities |
| title_short | Coherent synchrotron radiation free longitudinal bunch shaping using transverse deflecting cavities |
| title_sort | coherent synchrotron radiation free longitudinal bunch shaping using transverse deflecting cavities |
| url | http://doi.org/10.1103/PhysRevAccelBeams.23.072803 |
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