Measurement of ion acceleration and diffusion in a laser-driven magnetized plasma

2025/09/09 by Jinn P. Chu, Jack Halliday, Chu, J. T. Y. +53
Physics and Astronomy · #Laser-Plasma Interactions and Diagnostics #Magnetic confinement fusion research #Dust and Plasma Wave Phenomena

paper · pdf · doi:10.48550/arxiv.2509.07880

Abstract

Here we present results from an experiment performed at the GSI Helmholtz Centre for Heavy Ion Research. A mono-energetic beam of chromium ions with initial energies of ∼ 450 MeV was fired through a magnetized interaction region formed by the collision of two counter-propagating laser-ablated plasma jets. While laser interferometry revealed the absence of strong fluid-scale turbulence, acceleration and diffusion of the beam ions was driven by wave-particle interactions. A possible mechanism is particle acceleration by electrostatic, short scale length kinetic turbulence, such as the lower-hybrid drift instability.

Citations

• Ion Kinetics and Neutron Generation Associated with Electromagnetic Turbulence in Laboratory-scale Counter-streaming Plasmas
• Time-Of-Flight methodologies with large-area diamond detectors for ion characterization in laser-driven experiments
• The generation and amplification of intergalactic magnetic fields in analogue laboratory experiments with high power lasers
• Über den Ursprung der Magnetfelder auf Sternen und im interstellaren Raum

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