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Mainz 2022 – wissenschaftliches Programm

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P: Fachverband Plasmaphysik

P 3: Laser Plasmas I

P 3.2: Vortrag

Montag, 28. März 2022, 14:15–14:30, P-H12

Study of x-ray emission from proton acceleration targets at Draco PW laser facility — •Radka Štefaníková1,2, Niklas Meckel1,2, Xiayun Pan1,2, Michal Šmíd1, Hans-Peter Schlenvoigt1, Irene Prencipe1, Michaela Kozlová1,3, Lennart Gaus1,2, Marvin E. P. Umlandt1,2, Milenko Vescovi1,2, Marvin Reimold1,2, Tim Ziegler1,2, Florian Kroll1, Stephan Kraft1, Ulrich Schramm1,2, Karl Zeil1, Josefine Metzkes-Ng1, and Katerina Falk1,2,31Helmholtz-Zentrum Dresden-Rossendorf, Dresden, Germany — 2Technische Universität Dresden, Dresden, Germany — 3Institute of Physics of the ASCR, Prague, Czech Republic

Laser plasma-based ion accelerators are very promising candidates for many applications. In order to ensure the reliability of such accelerators a comprehensive set of diagnostics is required. X-ray emission spectroscopy allows us to directly measure the plasma conditions of the laser-plasma interaction and also provides information about the hot electron population through the cold K-α emission production.

Here, we present preliminary results from two new x-ray spectrometers used to study interaction regimes relevant for laser-driven ion acceleration at ultra-short pulse PW-class laser facility. We acquired the emission spectra from flat Ti targets for a range of target thicknesses and laser energies. Additionally, artificial laser pre-pulses were added to alter the laser absorption efficiency.

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