External electron injection, trapping, and emittance evolution in the blow-out regime
In this work, we study electron side-injection and trapping in the blow-out regime in deep plasma channels. We analyze the maximum angle of injection, for which at least 90% of the injected electrons are trapped. We discuss the dependence of this angle on the electrons' initial energy and their...
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Veröffentlicht in: | Physics of plasmas 2018-12, Vol.25 (12) |
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Hauptverfasser: | , , |
Format: | Artikel |
Sprache: | eng |
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Online-Zugang: | Volltext |
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Zusammenfassung: | In this work, we study electron side-injection and trapping in the blow-out regime in deep plasma channels. We analyze the maximum angle of injection, for which at least 90% of the injected electrons are trapped. We discuss the dependence of this angle on the electrons' initial energy and their injection positions. In the scope of a semi-analytical blow-out model, we show that the injection position is a less critical factor for trapping if electrons are injected into deep plasma channels. Photonic integrated circuit simulations and analytical approximations support our results from the semi-analytical model. Furthermore, a discussion of the temporal evolution of the normalized radial emittance during the trapping process and further acceleration is presented. |
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ISSN: | 1070-664X 1089-7674 |
DOI: | 10.1063/1.5045355 |