Linear particle accelerator - QuickField simulation example
Linear particle accelerator (linac) is used to accelerate charged particles.
How to find linear particle accelerator electric field distribution?
Answer Typical applications Geometry
Given
Task
Solution
Results
Engineering question
Set up an axisymmetric QuickField Electrostatics problem for a linear particle accelerator and evaluate electric field distribution from computed field results.
linear particle accelerators, electrostatic accelerator sections, charged particle beamlines
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Simulation problem
Problem Type
Axisymmetric problem of electrostatics.
Relative permittivity of vacuum ε = 1;
Ring potential U+ = 15 kV.
Emitter potential U- = -15 kV.
Charge (electron) q = -1.602e-19 C
Mass (electron) m = 9.109e-31 kg
Initial velocity vy = vz = vφ = 0 m/s.
Emitter position (0; 0; 0).
Calculate the charged particle speed at the center of the linear accelerator ring.
Particle trajectory may be calculated using the built-in function in QuickField Electrostatic postprocessor or by the free tool TrajectoryTracer.
Particle speed at the ring center is vz = 90000 km/s.
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