München 2019 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 54: Poster

HK 54.59: Poster

Thursday, March 21, 2019, 16:30–19:00, Foyer Theresanium

Construction of a new Cluster-Jet Target for the CryoFlash Experiment — •Christian Mannweiler, Lukas Lessmann, Daniel Bonaventura, Silke Grieser, and Alfons Khoukaz — Institut für Kernphysik, Westfälische Wilhelms-Universität Münster 48149 Münster, Germany

The Cryoflash-Experiment employs the ARCTURUS high power laser system of the University of Düsseldorf and a cluster-jet target designed and constructed by the University of Münster to study laser-plasma interactions. These experiments investigate the acceleration of particles, especially protons, for use in compact tabletop accelerators as well as the generation of ultrashort intense X-ray pulses for pump-probe experiments. The clusters are created by pressing cooled gas through a Laval nozzle, resulting in a continuous jet of small particles with approximately solid density, each the size of tens of nanometres, thus combining the strengths of both gas- as well as foil-targets. Previous experiments with a first cluster-jet target have already demonstrated a remarkable stability concerning the spectra of obtained accelerated protons. The newly developed target, its design optimised using the experience gained from the previous target, will enable greater Proton fluxes and energies. Furthermore, it will become possible to characterise clusters created with liquid hydrogen with the help of Mie-scattering techniques. The design as well as first test- and experimental results will be presented and discussed.