Experimental laser wakefield acceleration scalings exceeding 100 TW

McGuffey, C. and Matsuoka, T. and Kneip, S. and Schumaker, W. and Dollar, F. and Zulick, C. and Chvykov, V. and Kalintchenko, G. and Yanovsky, V. and Maksimchuk, A. and Thomas, A. G. R. and Krushelnick, K. and Najmudin, Z. (2012) Experimental laser wakefield acceleration scalings exceeding 100 TW. Physics of Plasmas, 19 (6). ISSN 1070-664X

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Understanding the scaling of laser wakefield acceleration (LWFA) is crucial to the design of potential future systems. A number of computational and theoretical studies have predicted scalings with laser power for various parameters, but experimental studies have typically been limited to small parameter ranges. Here, we detail extensive measurements of LWFA experiments conducted over a considerable range in power from 20 to 110 TW, which allows for a greater plasma density range and for a large number of data points. These measurements include scalings of the electron beam charge and maximum energy as functions of density as well as injection threshold density, beam charge, and total beam energy as functions of laser power. The observed scalings are consistent with theoretical understandings of operation in the bubble regime. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4729659]

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Journal Article
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Physics of Plasmas
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11 Nov 2016 14:08
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17 Sep 2023 01:58