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Charged Particle Tracing Blog Posts

Benchmark Model Shows Reliable Results for Inertial Focusing Analysis

May 24, 2017

Inertial focusing involves the migration of particles through a channel. This benchmark model analyzes particle behavior in an inertial focusing process with validated, reliable results.

Sampling from Phase Space Distributions in 3D Charged Particle Beams

September 22, 2016

Learn how to sample the initial positions and velocities of 3D beam particles from the transverse phase space distribution. Part 3 of a series on modeling charged particle beams.

Phase Space Distributions and Emittance in 2D Charged Particle Beams

September 19, 2016

We discuss the concepts of phase space and emittance as they apply to the release of ions or electrons in beams. Part 2 of a series on phase space distributions in beam physics.

Sampling Random Numbers from Probability Distribution Functions

September 15, 2016

Get a comprehensive background on probability distribution functions and the different ways you can sample random numbers from them in COMSOL Multiphysics®. Part 1 of a series on beam physics.

Particle Tracing in a Component of a Quadrupole Mass Spectrometer

July 25, 2016

Use multiphysics simulation to analyze the design of quadrupole mass filters (the key component of quadrupole mass spectrometers) and investigate the effect of fringe fields on these devices.

Different Ways to Count Particles in COMSOL Multiphysics

November 19, 2015

There are 3 ways you can count particles in your particle tracing simulations in COMSOL Multiphysics: during postprocessing, using accumulators, or with the Particle Counter feature.

Dielectrophoretic Separation

January 23, 2015

Dielectrophoresis is a phenomenon in which an electric field is used to control the movement of electrically neutral particles. Learn about how to model this effect in both DC and AC fields.

Modeling Beam Neutralization with a Charge Exchange Cell

December 16, 2014

A charge exchange cell refers to an area of high-density gas that is placed in the path of an ion beam. You can model a charge exchange cell to analyze its neutralization efficiency.