This video was made using my parallel ray tracing rendering code on 5 nodes (160 cores) on Compute Canada’s Graham cluster.

The video shows plasma electron density (low in blue and high in red). The camera is moving at the speed of light to follow a short high intensity laser pulse (not shown). This laser pulse is so intense that it expels all the plasma electrons from its path and creates a bubble-like feature in the plasma. This bubble feature still contains positively charged ions due to their large mass and hence has strong electric fields that pull electrons into the bubble and accelerate them as they ride along with the laser pulse. This mechanism is called Relativistic Laser Wakefield Acceleration.

The simulation was performed on 32 nodes (1280 cores) of Compute Canada’s Niagara cluster using OSIRIS, a 3D fully relativistic Particle-in-Cell plasma modelling code. It solved Maxwell’s equations for the electric and magnetic fields on a 3600x1800x1800 grid covering the domain 160x120x120µm with ~23 billion electron particles. The output used specifically to make this video was about 20TB.

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