Experimental study of extended timescale dynamics of a plasma wakefield driven by a self-modulated proton bunch
Plasma wakefield dynamics over timescales up to 800 ps, approximately 100 plasma periods, are studied experimentally at the Advanced Wakefield Experiment (AWAKE). The development of the longitudinal wakefield amplitude driven by a self-modulated proton bunch is measured using the external injection...
| Main Authors: | , , , , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
American Physical Society
2021
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| _version_ | 1797068150695526400 |
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| author | Chappell, J Adli, E Agnello, R Burrows, PN Ramjiawan, RL Senes, E The AWAKE Collaboration |
| author_facet | Chappell, J Adli, E Agnello, R Burrows, PN Ramjiawan, RL Senes, E The AWAKE Collaboration |
| author_sort | Chappell, J |
| collection | OXFORD |
| description | Plasma wakefield dynamics over timescales up to 800 ps, approximately 100 plasma periods, are studied experimentally at the Advanced Wakefield Experiment (AWAKE). The development of the longitudinal wakefield amplitude driven by a self-modulated proton bunch is measured using the external injection of witness electrons that sample the fields. In simulation, resonant excitation of the wakefield causes plasma electron trajectory crossing, resulting in the development of a potential outside the plasma boundary as electrons are transversely ejected. Trends consistent with the presence of this potential are experimentally measured and their dependence on wakefield amplitude are studied via seed laser timing scans and electron injection delay scans. |
| first_indexed | 2024-03-06T22:06:33Z |
| format | Journal article |
| id | oxford-uuid:505c7d81-f7ad-4cba-b23d-8c3c510b1464 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T22:06:33Z |
| publishDate | 2021 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | oxford-uuid:505c7d81-f7ad-4cba-b23d-8c3c510b14642022-03-26T16:13:05ZExperimental study of extended timescale dynamics of a plasma wakefield driven by a self-modulated proton bunchJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:505c7d81-f7ad-4cba-b23d-8c3c510b1464EnglishSymplectic ElementsAmerican Physical Society2021Chappell, JAdli, EAgnello, RBurrows, PNRamjiawan, RLSenes, EThe AWAKE CollaborationPlasma wakefield dynamics over timescales up to 800 ps, approximately 100 plasma periods, are studied experimentally at the Advanced Wakefield Experiment (AWAKE). The development of the longitudinal wakefield amplitude driven by a self-modulated proton bunch is measured using the external injection of witness electrons that sample the fields. In simulation, resonant excitation of the wakefield causes plasma electron trajectory crossing, resulting in the development of a potential outside the plasma boundary as electrons are transversely ejected. Trends consistent with the presence of this potential are experimentally measured and their dependence on wakefield amplitude are studied via seed laser timing scans and electron injection delay scans. |
| spellingShingle | Chappell, J Adli, E Agnello, R Burrows, PN Ramjiawan, RL Senes, E The AWAKE Collaboration Experimental study of extended timescale dynamics of a plasma wakefield driven by a self-modulated proton bunch |
| title | Experimental study of extended timescale dynamics of a plasma wakefield driven by a self-modulated proton bunch |
| title_full | Experimental study of extended timescale dynamics of a plasma wakefield driven by a self-modulated proton bunch |
| title_fullStr | Experimental study of extended timescale dynamics of a plasma wakefield driven by a self-modulated proton bunch |
| title_full_unstemmed | Experimental study of extended timescale dynamics of a plasma wakefield driven by a self-modulated proton bunch |
| title_short | Experimental study of extended timescale dynamics of a plasma wakefield driven by a self-modulated proton bunch |
| title_sort | experimental study of extended timescale dynamics of a plasma wakefield driven by a self modulated proton bunch |
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