Tomographic characterization of gas jets for laser-plasma acceleration with increased sensitivity

Uddhab Chaulagain; Stefan Karatodorov; Marek Raclavský; S. Lorenz; Marcel Lamač; Martin Albrecht; Vidmantas Tomkus; Juozas Dudutis; Miglė Mackevičiūtė; Paulius Gečys; Jaroslav Nejdl

doi:10.1117/12.2592861

8 July 2021 Tomographic characterization of gas jets for laser-plasma acceleration with increased sensitivity

Uddhab Chaulagain, Stefan Karatodorov, Marek Raclavský, S. Lorenz, Marcel Lamač, Martin Albrecht, Vidmantas Tomkus, Juozas Dudutis, Miglė Mackevičiūtė, Paulius Gečys, Jaroslav Nejdl

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Proceedings Volume 11886, International Conference on X-Ray Lasers 2020; 118860A (2021) https://doi.org/10.1117/12.2592861
Event: XVII International Conference on X-Ray Lasers, 2020, Online Only

Abstract

We present a new interferometric technique for gas jets density characterization employing a Wollaston shearing interferometer. The distinctive feature of this setup is the double pass of the probe beam through the gas target facilitated by a relay-imaging object arm that images the object on itself and preserves the spatial information. The double pass results in two-fold increase of sensitivity at the same time as the relay-imaging enables the characterization of gas jets with arbitrary gas density distribution by tomographic reconstruction. The capabilities of the double-pass Wollaston interferometer are demonstrated by tomographic density reconstruction of rotationally non-symmetric gas jets that are used as gas targets for the betatron X-ray source at ELI-Beamlines.

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Uddhab Chaulagain, Stefan Karatodorov, Marek Raclavský, S. Lorenz, Marcel Lamač, Martin Albrecht, Vidmantas Tomkus, Juozas Dudutis, Miglė Mackevičiūtė, Paulius Gečys, and Jaroslav Nejdl "Tomographic characterization of gas jets for laser-plasma acceleration with increased sensitivity", Proc. SPIE 11886, International Conference on X-Ray Lasers 2020, 118860A (8 July 2021); https://doi.org/10.1117/12.2592861

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