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Journal Articles Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment Year : 2018

Stable electron beams from laser wakefield acceleration with few-terawatt driver using a supersonic air jet

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Abstract

The generation of stable electron beams produced by the laser wakefield acceleration mechanism with a few-terawatt laser system (600 mJ, 50 fs) in a supersonic synthetic air jet is reported and the requirements necessary to build such a stable electron source are experimentally investigated in conditions near the bubble regime threshold. The resulting electron beams have stable energies of (17.4 +/- 1.1) MeV and an energy spread of (13.5 +/- 1.5) MeV (FWHM), which has been achieved by optimizing the properties of the supersonic gas jet target for the given laser system. Due to the availability of few-terawatt laser systems in many laboratories around the world these stable electron beams open possibilities for applications of this type of particle source.
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Dates and versions

hal-01719271 , version 1 (28-02-2018)

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K. Boháček, M. Kozlova, J. Nejdl, U. Chaulagain, V. Horný, et al.. Stable electron beams from laser wakefield acceleration with few-terawatt driver using a supersonic air jet. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2018, 883, pp.24 - 28. ⟨10.1016/j.nima.2017.11.022⟩. ⟨hal-01719271⟩
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