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Diffstat (limited to 'Source/Particles/RigidInjectedParticleContainer.H')
| -rw-r--r-- | Source/Particles/RigidInjectedParticleContainer.H | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/Source/Particles/RigidInjectedParticleContainer.H b/Source/Particles/RigidInjectedParticleContainer.H index a2473c5ad..fecb9c48e 100644 --- a/Source/Particles/RigidInjectedParticleContainer.H +++ b/Source/Particles/RigidInjectedParticleContainer.H @@ -4,6 +4,24 @@ #include <PhysicalParticleContainer.H> #include <AMReX_Vector.H> +/** + * When injecting a particle beam (typically for a plasma wakefield + * acceleration simulation), say propagating in the z direction, it can + * be necessary to make particles propagate in a straight line up to a given + * location z=z0. This is of particular importance when running in a boosted + * frame, where the beam may evolve due to its space charge fields before + * entering the plasma, causing the actual injected beam, and hence the whole + * simulation result, to depend on the Lorentz factor of the boost. + * + * This feature is implemented in RigidInjectedParticleContainer: At each + * iteration, for each particle, if z<z0 the particle moves in a straight line, + * and if z>z0 the particle evolves as a regular PhysicalParticleContainer. + * + * Note: This option is also useful to build self-consistent space charge + * fields for the particle beam. + * + * RigidInjectedParticleContainer derives from PhysicalParticleContainer. + */ class RigidInjectedParticleContainer : public PhysicalParticleContainer { |