München 2019 – wissenschaftliches Programm
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AKBP: Arbeitskreis Beschleunigerphysik
AKBP 8: New Accelerator Concepts
AKBP 8.2: Vortrag
Dienstag, 19. März 2019, 16:45–17:00, HS 8
Pulse-front tilt in laser-plasma accelerators with short focal lengths — •Klaus Steiniger1, Michael Bussmann1, Thomas Kluge1, Richard Pausch1,2, Karl Zeil1, and Alexander Debus1 — 1Helmoltz-Zentrum Dresden - Rossendorf, Bautzner Landstr. 400, 01328 Dresden, Germany — 2Technische Universität Dresden, 01062 Dresden
Laser ion accelerators utilize high-power laser pulses in tight-focusing geometries to provide pulsed, high-intensity ion beams. Efficient capturing, transport and application of these beams is an ongoing effort which depends on precise knowledge of the accelerated ion distribution's properties and how to control these. For example, it is known that the propagation direction of the accelerated ions can be controlled by tilting the driving laser pulse-front. Since laser pulse-front tilts can be present accidentally, for example by a small misalignment of the compressor gratings in a chirped-pulse amplification system, knowledge of the scaling of the pulse-front tilt at a target position is desired. The talk gives relations for pulse-front orientation dependent on setup parameters and identifies regimes were pulse-front tilt has a sizable impact.