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AKBP: Arbeitskreis Beschleunigerphysik

AKBP 12: AKBP Poster Session

AKBP 12.11: Poster

Donnerstag, 21. März 2024, 11:00–14:00, Poster A

Implementation of a Transmission Diagnostic for High-Power Laser Plasma Interactions during Laser Ion Acceleration — •Runjia Guo, Maximilian J. Weiser, Erin G. Fitzpatrick, Laura D. Geulig, Ming-Yang Hsu, Veronika Kratzer, Vitus Magin, and Peter G. Thirolf — Ludwig-Maximilians-Universität München, Munich, Germany

Laser-driven acceleration of heavy ions is actively studied due to its ability to deliver ion bunches with high densities and ultra-short duration. These are needed for the novel fission-fusion nuclear reaction mechanism to investigate nuclear properties related to the rapid neutron capture process [1]. The process of ion acceleration begins when the focused laser pulse interacts with the plasma it generates from thin foil targets. To put ion beams into applications, diagnostics of the laser-plasma interaction quality is significant. For this, in High Field (HF) experiments of the Centre for Advanced Laser Applications (CALA), we are currently developing a diagnostic method to measure the amount of transmitted light through the targets, which is a key indicator of the efficiency of the conversion of laser pulse to ion energy [2]. A sandblasted glass screen is placed at 33 cm downstream of the laser focus. Two cameras with varied filters image the laser pulse profile transmitted through targets, measuring empty and target shot brightness, respectively, to quantitatively assess laser-light transmission and its dependency on target thickness. [1] D. Habs et al., Appl. Phys. B 103, 471-484 (2011) [2] Nicholas P.Dover., et al. Light Sci Appl 12, 71 (2023).

Keywords: Laser-Driven Ion Acceleration; Heavy Ions; Transmission Diagnostic; Gold Foil Target; Fission-Fusion