VSimPA For Plasma Acceleration Simulations

Laser Plasma Accelerator Simulation With VSimPA
This example demonstrates the use of VSim to simulate a simple laser-plasma accelerator problem using the full PIC algorithm.

VSimPA is a comprehensive software solution for scientists and engineers working on plasma acceleration simulations and techniques. Users of VSimPA can run numerical experiments with ionization injection, colliding pulse injection, and down-ramp injection. In addition, by including reduced methods like the envelope approximation with or without phase tracking, VSimPA can model Laser-Wakefield Field Acceleration (LWFA) into depletion without fully resolving the laser wavelength and controlled dispersion algorithms limit numerical artifacts.
VSimPA’s computational engine, VORPAL, has been used for multiple scientific discoveries, including the first Dream Beam discoveries, stable GeV acceleration, density-gradient injection, and the more recent Trojan Horse simulations. With thousands of literature citations since first described in 2004, VSimPA is the most frequently cited code capable of modeling plasma acceleration and the most trusted tool for plasma acceleration research.

Learn more about the VSim simulation featured on the cover of Nature in 2004.


“Our group switched to VSim for all of our accelerator related simulation needs. The software is incredibly powerful, its user-friendly interface feels natural to an accelerator scientist, and the support provided by the folks at Tech-X is phenomenal.”

Sandra Biedron
Fellow of the American Physical Society
Recipient of the 2018 Particle Accelerator Science and Technology Award

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VSimPA Advantages

VSimPA Capabilities

  • Advanced Beam Self-Field Ionization
  • Beam Injection
  • Boosted Frame
  • Controlled Dispersion
  • Current & Field Smoothing
  • Envelope Model, Including Phase Tracking
  • Laser Pulse Launching
  • Extensive Set of Reactions
  • Charged & Neutral Weight
  • Variable Weight
  • Relativistic
  • Higher-Order
  • Surface Charge
  • Secondary Emissions
  • Absorbing
  • Collisions
  • Field Ionizations
  • Matched Absorbing Layers (MAL)
  • Noise Reduction Filters
  • Cold, Relativistic Fluid
  • Euler Fluid
  • Static Background Gas

Plasma Acceleration Problem?

Applications for VSimPA

Beam-driven acceleration

Ionization injection

Down-ramp injection

Ion channel lasing

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