CST PARTICLE STUDIO® (CST PS) is dedicated to simulating charged particles travelling through electromagnetic fields. To accomplish this task, CST PS uses fields calculated in other CST STUDIO SUITE® 3D EM solvers, particularly CST EM STUDIO® and CST MICROWAVE STUDIO® as input. CST PS tracks charged particles through these fields, considering relativistic effects, space charge and secondary emission, to deliver particle trajectories, phase space distribution, emittance and other data.
CST PS simulation of a depressed collector. Particles are decelerated by electrostatic fields
The stationary particle tracking solver enables the tracking of charged particles through electrostatic, magnetostatic and eigenmode fields. There are various emission models, including secondary emission, available. Space charge can be considered in gun mode.
The wake field solver calculates the fields created by a charged particle bunch travelling through 3D geometries, like cavities, bellows, etc. in time domain; it integrates the total effect of such accelerator elements and delivers information like loss and kick factor.
The particle in cell (PIC) solver provides a self-consistent method for the transient simulation of particle dynamics. This solver takes care of space charge and self-magnetic as well as of relativistic effects when propagating particles for example through static or HF electromagnetic fields. This allows to simulate devices such as high power MW tubes.
The electrostatics solver from CST EMS is used to calculate the accelerating fields for static guns, or the deflecting electrostatic fields of beamsteering units in cathode ray tubes (CRT). The magnetostatics solver meanwhile pre-calculates the fields of various types of magnets such as solenoids, dipoles and quadrupoles for beam optics simulation. Particles can also be tracked through resonant fields in cavities calculated with the eigenmode solver in CST MWS.