Paper
8 June 2023 Advanced measurement of gas jet density using a wavefront sensor
M. Raclavský, Kavya H. Rao, M. Lamač, U. Chaulagain, J. Nejdl
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Abstract
We present a four-pass tomography setup for the characterization of the density distribution of a gas jet. The data acquired with a wavefront sensor is processed using a tomography algorithm, providing a 3D reconstruction of the gas density distribution. We applied this technique to characterize a supersonic gas jet produced by a de Laval nozzle and obstructed by a razor blade in ambient pressure, which are among the common targets used in high-repetition rate laser wakefield acceleration (LWFA) experiments. The results revealed the complex density distribution of the jet, including the formation of barrel shocks. The four-pass tomography setup with a wavefront sensor provides a valuable tool for the detailed characterization of gas jets, enabling the investigation of fundamental fluid mechanics phenomena and contributing to the development of advanced propulsion systems and LWFA gas targets.
© (2023) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
M. Raclavský, Kavya H. Rao, M. Lamač, U. Chaulagain, and J. Nejdl "Advanced measurement of gas jet density using a wavefront sensor", Proc. SPIE 12582, Compact Radiation Sources from EUV to Gamma-rays: Development and Applications, 125820H (8 June 2023); https://doi.org/10.1117/12.2665686
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KEYWORDS
Wavefront sensors

Phase measurement

Nozzles

Tomography

Interferometry

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