4 research outputs found
Increase of the Density, Temperature and Velocity of Plasma Jets driven by a Ring of High Energy Laser Beams
Supersonic plasma outflows driven by multi-beam, high-energy lasers, such as
Omega and NIF, have been and will be used as platforms for a variety of
laboratory astrophysics experiments. Here we propose a new way of launching
high density and high velocity, plasma jets using multiple intense laser beams
in a hollow ring formation. We show that such jets provide a more flexible and
versatile platform for future laboratory astrophysics experiments. Using high
resolution hydrodynamic simulations, we demonstrate that the collimated jets
can achieve much higher density, temperature and velocity when multiple laser
beams are focused to form a hollow ring pattern at the target, instead of
focused onto a single spot. We carried out simulations with different ring
radii and studied their effects on the jet properties. Implications for
laboratory collisionless shock experiments are discussed.Comment: 5 pages, 4 figures, Accepted to HED