Theory and simulation of multi-GeV laser wakefield acceleration at kHz repetition rates
<p>Deploying both analytic methods and particle-in-cell (PIC) simulations, we investigate the operating regime and performance of the Plasma-Modulated Plasma Accelerator (P-MoPA) [1]. This new approach offers the potential for GeV-scale laser wakefield accelerators (LWFA) at kHz repetition rat...
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| Formaat: | Thesis |
| Taal: | English |
| Gepubliceerd in: |
2024
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| _version_ | 1826313374417289216 |
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| author | van de Wetering, JJ |
| author2 | Hooker, S |
| author_facet | Hooker, S van de Wetering, JJ |
| author_sort | van de Wetering, JJ |
| collection | OXFORD |
| description | <p>Deploying both analytic methods and particle-in-cell (PIC) simulations, we investigate the operating regime and performance of the Plasma-Modulated Plasma Accelerator (P-MoPA) [1]. This new approach offers the potential for GeV-scale laser wakefield accelerators (LWFA) at kHz repetition rates by taking advantage of preexisting thin-disk laser technology [2–4], overcoming the < 0.1–1 Hz shot rates of contemporary LWFA systems. We derive a 3D analytic theory of the P-MoPA for the laser pulse and wakefield evolution in long (> 100 mm) pre-formed plasma channels, and benchmark our theory with particle-in-cell (PIC) simulations.</p>
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<p>We identify a self-modulational transverse mode instability (TMI) that limits the energy of the drive pulse accepted by the modulator stage of the P-MoPA, and find that our theory agrees well. This shows that the TMI is the limiting factor of the plasma modulator, but still allows multi-joule drive pulses corresponding to multi-GeV electron beams. Extended 3D non-paraxial theory in conjunction with further PIC simulations then demonstrate the viability of multi-GeV LWFA driven by these plasma-modulated pulses. Finally, we evaluate the P-MoPA for a potential application as a kHz driver for a water-window X-ray free electron laser (XFEL).</p> |
| first_indexed | 2024-09-25T04:12:06Z |
| format | Thesis |
| id | oxford-uuid:5f62bfef-f69f-493e-b1e3-d27e07997fb8 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-09-25T04:12:06Z |
| publishDate | 2024 |
| record_format | dspace |
| spelling | oxford-uuid:5f62bfef-f69f-493e-b1e3-d27e07997fb82024-07-05T14:00:46ZTheory and simulation of multi-GeV laser wakefield acceleration at kHz repetition ratesThesishttp://purl.org/coar/resource_type/c_db06uuid:5f62bfef-f69f-493e-b1e3-d27e07997fb8Plasma acceleratorsLaser-plasma interactionsPhysicsEnglishHyrax Deposit2024van de Wetering, JJHooker, SWalczak, R<p>Deploying both analytic methods and particle-in-cell (PIC) simulations, we investigate the operating regime and performance of the Plasma-Modulated Plasma Accelerator (P-MoPA) [1]. This new approach offers the potential for GeV-scale laser wakefield accelerators (LWFA) at kHz repetition rates by taking advantage of preexisting thin-disk laser technology [2–4], overcoming the < 0.1–1 Hz shot rates of contemporary LWFA systems. We derive a 3D analytic theory of the P-MoPA for the laser pulse and wakefield evolution in long (> 100 mm) pre-formed plasma channels, and benchmark our theory with particle-in-cell (PIC) simulations.</p> <br> <p>We identify a self-modulational transverse mode instability (TMI) that limits the energy of the drive pulse accepted by the modulator stage of the P-MoPA, and find that our theory agrees well. This shows that the TMI is the limiting factor of the plasma modulator, but still allows multi-joule drive pulses corresponding to multi-GeV electron beams. Extended 3D non-paraxial theory in conjunction with further PIC simulations then demonstrate the viability of multi-GeV LWFA driven by these plasma-modulated pulses. Finally, we evaluate the P-MoPA for a potential application as a kHz driver for a water-window X-ray free electron laser (XFEL).</p> |
| spellingShingle | Plasma accelerators Laser-plasma interactions Physics van de Wetering, JJ Theory and simulation of multi-GeV laser wakefield acceleration at kHz repetition rates |
| title | Theory and simulation of multi-GeV laser wakefield acceleration at kHz repetition rates |
| title_full | Theory and simulation of multi-GeV laser wakefield acceleration at kHz repetition rates |
| title_fullStr | Theory and simulation of multi-GeV laser wakefield acceleration at kHz repetition rates |
| title_full_unstemmed | Theory and simulation of multi-GeV laser wakefield acceleration at kHz repetition rates |
| title_short | Theory and simulation of multi-GeV laser wakefield acceleration at kHz repetition rates |
| title_sort | theory and simulation of multi gev laser wakefield acceleration at khz repetition rates |
| topic | Plasma accelerators Laser-plasma interactions Physics |
| work_keys_str_mv | AT vandeweteringjj theoryandsimulationofmultigevlaserwakefieldaccelerationatkhzrepetitionrates |