München 2019 – scientific programme

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AKBP: Arbeitskreis Beschleunigerphysik

AKBP 8: New Accelerator Concepts

AKBP 8.4: Talk

Tuesday, March 19, 2019, 17:15–17:30, HS 8

Gas jet targets and their application in laser-driven ion acceleration — •Alexander Schulze-Makuch^1,2, Stefan Assenbaum^2,3, Constantin Bernert^2,3, Florian-Emanuel Brack^2,3, Lennart Gaus^2,3, Stephan Kraft², Florian Kroll², Josefine Metzkes-Ng², Lieselotte Obst-Hübl^2,3, Martin Rehwald^2,3, Marvin Reimold^2,3, Hans-Peter Schlenvoigt², Karl Zeil², Tim Ziegler^2,3, and Ulrich Schramm^2,3 — ¹Albert-Ludwigs Universität Freiburg, Freiburg, Germany — ²Helmholtz-Zentrum Dresden-Rossendorf, Dresden, Germany — ³Technische Universität Dresden, Zellescher Weg 19, 01069 Dresden, Germany

Currently, the acceleration gradients of conventional linear accelerators are limited to 10 MeV/m. However, the acceleration gradients of laser-driven particle accelerators can be in the order of 1 TV/m. This can lead to the development of compact accelerators including their use in medical applications, e.g. hadron therapy. Conventional targets for ion acceleration are operationally limited because of relatively low repetition rate and contamination of optics from debris. Therefore, alternative target schemes need to be investigated. One possible way forward are high-density gas jets which, in contrast to gas jets for electron acceleration, are near the critical density and thus offer a variety of physical mechanisms to accelerate protons or even heavier particles.

Here we present our recent developments in establishing a high-density gas jet at the DRACO laser in the Helmholtz-Zentrum Dresden-Rossendorf and highlight its properties and feasibility for laser-ion acceleration.