Modeling of the driver transverse profile for laser wakefield electron acceleration at APOLLON research facility
The quality of electron bunches accelerated by laser wakefields is highly dependant on the temporal and spatial features of the laser driver. Analysis of experiments performed at APOLLON PW-class laser facility shows that spatial instabilities of the focal spot, such as shot-to-shot pointing fluctua...
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| Veröffentlicht in: | Physics of plasmas 2023-05, Vol.30 (5) |
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| container_title | Physics of plasmas |
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| creator | Moulanier, I. Dickson, L. T. Ballage, C. Vasilovici, O. Gremaud, A. Dobosz Dufrénoy, S. Delerue, N. Bernardi, L. Mahjoub, A. Cauchois, A. Specka, A. Massimo, F. Maynard, G. Cros, B. |
| description | The quality of electron bunches accelerated by laser wakefields is highly dependant on the temporal and spatial features of the laser driver. Analysis of experiments performed at APOLLON PW-class laser facility shows that spatial instabilities of the focal spot, such as shot-to-shot pointing fluctuations or asymmetry of the transverse fluence, lead to charge and energy degradation of the accelerated electron bunch. It is shown that PIC simulations can reproduce experimental results with a significantly higher accuracy when the measured laser asymmetries are included in the simulated laser's transverse profile, compared to simulations with ideal, symmetric laser profile. A method based on a modified Gerchberg–Saxton iterative algorithm is used to retrieve the laser electric field from fluence measurements in vacuum in the focal volume, and accurately reproduce experimental results using PIC simulations, leading to simulated electron spectra in close agreement with experimental results, for the accelerated charge, energy distribution, and pointing of the electron beam at the exit of the plasma. |
| doi_str_mv | 10.1063/5.0142894 |
| format | Article |
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T. ; Ballage, C. ; Vasilovici, O. ; Gremaud, A. ; Dobosz Dufrénoy, S. ; Delerue, N. ; Bernardi, L. ; Mahjoub, A. ; Cauchois, A. ; Specka, A. ; Massimo, F. ; Maynard, G. ; Cros, B.</creator><creatorcontrib>Moulanier, I. ; Dickson, L. T. ; Ballage, C. ; Vasilovici, O. ; Gremaud, A. ; Dobosz Dufrénoy, S. ; Delerue, N. ; Bernardi, L. ; Mahjoub, A. ; Cauchois, A. ; Specka, A. ; Massimo, F. ; Maynard, G. ; Cros, B.</creatorcontrib><description>The quality of electron bunches accelerated by laser wakefields is highly dependant on the temporal and spatial features of the laser driver. Analysis of experiments performed at APOLLON PW-class laser facility shows that spatial instabilities of the focal spot, such as shot-to-shot pointing fluctuations or asymmetry of the transverse fluence, lead to charge and energy degradation of the accelerated electron bunch. It is shown that PIC simulations can reproduce experimental results with a significantly higher accuracy when the measured laser asymmetries are included in the simulated laser's transverse profile, compared to simulations with ideal, symmetric laser profile. A method based on a modified Gerchberg–Saxton iterative algorithm is used to retrieve the laser electric field from fluence measurements in vacuum in the focal volume, and accurately reproduce experimental results using PIC simulations, leading to simulated electron spectra in close agreement with experimental results, for the accelerated charge, energy distribution, and pointing of the electron beam at the exit of the plasma.</description><identifier>ISSN: 1070-664X</identifier><identifier>EISSN: 1089-7674</identifier><identifier>DOI: 10.1063/5.0142894</identifier><identifier>CODEN: PHPAEN</identifier><language>eng</language><publisher>Melville: American Institute of Physics</publisher><subject>Asymmetry ; Electric fields ; Electron acceleration ; Electron beams ; Energy distribution ; Fluence ; Iterative algorithms ; Iterative methods ; Lasers ; Physics ; Plasma Physics ; Research facilities ; Simulation</subject><ispartof>Physics of plasmas, 2023-05, Vol.30 (5)</ispartof><rights>Author(s)</rights><rights>2023 Author(s). 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Analysis of experiments performed at APOLLON PW-class laser facility shows that spatial instabilities of the focal spot, such as shot-to-shot pointing fluctuations or asymmetry of the transverse fluence, lead to charge and energy degradation of the accelerated electron bunch. It is shown that PIC simulations can reproduce experimental results with a significantly higher accuracy when the measured laser asymmetries are included in the simulated laser's transverse profile, compared to simulations with ideal, symmetric laser profile. 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T. ; Ballage, C. ; Vasilovici, O. ; Gremaud, A. ; Dobosz Dufrénoy, S. ; Delerue, N. ; Bernardi, L. ; Mahjoub, A. ; Cauchois, A. ; Specka, A. ; Massimo, F. ; Maynard, G. ; Cros, B.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c396t-e582ed9b893dc19537e4011320e8ea26c8d1906706984ff618efd0a459cb3f673</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2023</creationdate><topic>Asymmetry</topic><topic>Electric fields</topic><topic>Electron acceleration</topic><topic>Electron beams</topic><topic>Energy distribution</topic><topic>Fluence</topic><topic>Iterative algorithms</topic><topic>Iterative methods</topic><topic>Lasers</topic><topic>Physics</topic><topic>Plasma Physics</topic><topic>Research facilities</topic><topic>Simulation</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Moulanier, I.</creatorcontrib><creatorcontrib>Dickson, L. 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T.</au><au>Ballage, C.</au><au>Vasilovici, O.</au><au>Gremaud, A.</au><au>Dobosz Dufrénoy, S.</au><au>Delerue, N.</au><au>Bernardi, L.</au><au>Mahjoub, A.</au><au>Cauchois, A.</au><au>Specka, A.</au><au>Massimo, F.</au><au>Maynard, G.</au><au>Cros, B.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Modeling of the driver transverse profile for laser wakefield electron acceleration at APOLLON research facility</atitle><jtitle>Physics of plasmas</jtitle><date>2023-05-01</date><risdate>2023</risdate><volume>30</volume><issue>5</issue><issn>1070-664X</issn><eissn>1089-7674</eissn><coden>PHPAEN</coden><abstract>The quality of electron bunches accelerated by laser wakefields is highly dependant on the temporal and spatial features of the laser driver. Analysis of experiments performed at APOLLON PW-class laser facility shows that spatial instabilities of the focal spot, such as shot-to-shot pointing fluctuations or asymmetry of the transverse fluence, lead to charge and energy degradation of the accelerated electron bunch. It is shown that PIC simulations can reproduce experimental results with a significantly higher accuracy when the measured laser asymmetries are included in the simulated laser's transverse profile, compared to simulations with ideal, symmetric laser profile. 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| source | AIP Journals Complete; Alma/SFX Local Collection |
| subjects | Asymmetry Electric fields Electron acceleration Electron beams Energy distribution Fluence Iterative algorithms Iterative methods Lasers Physics Plasma Physics Research facilities Simulation |
| title | Modeling of the driver transverse profile for laser wakefield electron acceleration at APOLLON research facility |
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