Adiabatic self-matching of witness bunches in a plasma wakefield accelerator
Plasma wakefield acceleration offers high accelerating gradients, making it an interesting candidate for future colliders. However, the large accelerating fields are coupled with large focusing fields, leading to accelerated bunches with extremely high charge density. In these regimes, the electron...
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| Format: | Article |
| Language: | English |
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EDP Sciences
2024-01-01
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| Series: | EPJ Web of Conferences |
| Online Access: | https://www.epj-conferences.org/articles/epjconf/pdf/2024/25/epjconf_lcws2024_02019.pdf |
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| _version_ | 1841557368971722752 |
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| author | Farmer John Caldwell Allen Pukhov Alexander |
| author_facet | Farmer John Caldwell Allen Pukhov Alexander |
| author_sort | Farmer John |
| collection | DOAJ |
| description | Plasma wakefield acceleration offers high accelerating gradients, making it an interesting candidate for future colliders. However, the large accelerating fields are coupled with large focusing fields, leading to accelerated bunches with extremely high charge density. In these regimes, the electron witness bunch can significantly perturb the plasma ion density. The resulting non-linear focusing field can lead to emittance growth, reducing the beam quality. In this work, we show that by accelerating in a single stage, as would be possible with a high-energy proton driver, the witness bunch can adiabatically match to the focusing fields, greatly reducing the emittance growth. This suggests that many of the constraints for electron acceleration in plasma can be avoided. |
| format | Article |
| id | doaj-art-9e4d665d5bb44f39a28b2578c4ce6231 |
| institution | Kabale University |
| issn | 2100-014X |
| language | English |
| publishDate | 2024-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | EPJ Web of Conferences |
| spelling | doaj-art-9e4d665d5bb44f39a28b2578c4ce62312025-01-06T11:33:47ZengEDP SciencesEPJ Web of Conferences2100-014X2024-01-013150201910.1051/epjconf/202431502019epjconf_lcws2024_02019Adiabatic self-matching of witness bunches in a plasma wakefield acceleratorFarmer John0Caldwell Allen1Pukhov Alexander2Max-Planck-Institut für PhysikMax-Planck-Institut für PhysikHeinrich-Heine-Universität DüsseldorfPlasma wakefield acceleration offers high accelerating gradients, making it an interesting candidate for future colliders. However, the large accelerating fields are coupled with large focusing fields, leading to accelerated bunches with extremely high charge density. In these regimes, the electron witness bunch can significantly perturb the plasma ion density. The resulting non-linear focusing field can lead to emittance growth, reducing the beam quality. In this work, we show that by accelerating in a single stage, as would be possible with a high-energy proton driver, the witness bunch can adiabatically match to the focusing fields, greatly reducing the emittance growth. This suggests that many of the constraints for electron acceleration in plasma can be avoided.https://www.epj-conferences.org/articles/epjconf/pdf/2024/25/epjconf_lcws2024_02019.pdf |
| spellingShingle | Farmer John Caldwell Allen Pukhov Alexander Adiabatic self-matching of witness bunches in a plasma wakefield accelerator EPJ Web of Conferences |
| title | Adiabatic self-matching of witness bunches in a plasma wakefield accelerator |
| title_full | Adiabatic self-matching of witness bunches in a plasma wakefield accelerator |
| title_fullStr | Adiabatic self-matching of witness bunches in a plasma wakefield accelerator |
| title_full_unstemmed | Adiabatic self-matching of witness bunches in a plasma wakefield accelerator |
| title_short | Adiabatic self-matching of witness bunches in a plasma wakefield accelerator |
| title_sort | adiabatic self matching of witness bunches in a plasma wakefield accelerator |
| url | https://www.epj-conferences.org/articles/epjconf/pdf/2024/25/epjconf_lcws2024_02019.pdf |
| work_keys_str_mv | AT farmerjohn adiabaticselfmatchingofwitnessbunchesinaplasmawakefieldaccelerator AT caldwellallen adiabaticselfmatchingofwitnessbunchesinaplasmawakefieldaccelerator AT pukhovalexander adiabaticselfmatchingofwitnessbunchesinaplasmawakefieldaccelerator |