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München 2019 – wissenschaftliches Programm

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P: Fachverband Plasmaphysik

P 8: Laser Plasmas I - Codes and Modelling I

P 8.4: Vortrag

Dienstag, 19. März 2019, 11:45–12:00, HS 20

Ultra-high energy density physics and ion acceleration in nano- and microstructures — •Vural Kaymak1, Alexander Pukhov1, Vyacheslav N. Shlyaptsev2, Jorge J. Rocca2,3, Bastian Aurand4, and Oswald Willi41Institut für Theoretische Physik, Heinrich-Heine-Universität Düsseldorf, 40225 Düsseldorf, Germany — 2Department of Electrical Computer Engineering, Colorado State University, Fort Collins, Colorado 80523, USA — 3Department of Physics, Colorado State University, Fort Collins, Colorado 80513, USA — 4Institut für Laser- und Plasmaphysik, Heinrich-Heine Universität, 40225 Düsseldorf, Germany

The creation of ultra-high energy density (UHED, >1· 108 J/cm3) plasmas in compact laboratory setups enables studies of matter under extreme conditions and can be used for the efficient generation of intense x-ray and neutron pulses. An accessible way to achieve the UHED regime is the irradiation of vertically aligned high-aspect-ratio nanowire arrays with relativistic femtosecond laser pulses. These targets have shown to facilitate near total absorption of laser light several micrometers deep into near-solid-density material. Spherical shaped targets on the microscale have shown to enhance the laser acceleration of proton beams compared to flat targets, making them promising sources for cancer radiotherapy and measurements of magnetic and electric fields with high spatiotemporal resolution. We investigate ways to generate UHED matter in nanowire arrays and the enhanced proton beam acceleration by spherically shaped microstructures.

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