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Blog Posts Tagged Particle Tracing Module

Studying the Van Allen Belts with Particle Tracing Simulation

May 30, 2018

Get a closer view of the Van Allen belts, 2 doughnut-shaped belts of radiation that surround Earth, with the help of particle tracing software.

Analyzing an Electrodynamic Ion Funnel with COMSOL Multiphysics®

December 8, 2017

Quadrupole mass filters and ion mobility spectrometers are used to detect explosives, study complex biological molecules, and more. Ion funnels are an important component of these devices.

Focusing on Einzel Lenses with Particle Tracing Simulation

November 15, 2017

You can use electrostatics analysis and charged particle tracing to better understand einzel lens systems and optimize their designs.

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

In the previous installment of this series, we explained two concepts needed to model the release and propagation of real-world charged particle beams. We first introduced probability distribution functions in a purely mathematical sense and then discussed a specific type of distribution — the transverse phase space distribution of a charged particle beam in 2D. Now, let’s combine what we’ve learned and find out how to sample the initial positions and velocities of 3D beam particles from this distribution.

Phase Space Distributions and Emittance in 2D Charged Particle Beams

September 19, 2016

Previously in our Phase Space Distributions in Beam Physics series, we introduced probability distribution functions (PDFs) and various ways to sample from them in the COMSOL Multiphysics® software. Such knowledge of PDFs is necessary to understand how ion and electron beams propagate within real-world systems. In this installment, we’ll discuss the concepts of phase space and emittance as they apply to the release of ions or electrons in beams.

Sampling Random Numbers from Probability Distribution Functions

September 15, 2016

In this blog series, we’ll investigate the simulation of beams of ions or electrons using particle tracking techniques. We’ll begin by providing some background information on probability distribution functions and the different ways in which you can sample random numbers from them in the COMSOL Multiphysics® software. In later installments, we’ll show how this underlying mathematics can be used to accurately simulate the propagation of ion and electron beams in real-world systems.

Particle Tracing in a Component of a Quadrupole Mass Spectrometer

July 25, 2016

Quadrupole mass filters, the key component of quadrupole mass spectrometers, filter ions by their charge-to-mass ratio, only allowing ions with a certain ratio to pass through the device. As such, a high transmission probability for a specific ion through the filter is desirable. However, fringe fields in the mass filter can affect this probability. By using multiphysics simulation, we can take a closer look at quadrupole mass filters and investigate the effect of fringe fields on these devices.