CST PARTICLE STUDIO®
Workflow &
Solver Overview
CST STUDIO SUITE™ 2011
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© CST 2005-2011
CST – Computer Simulation Technology AG
All rights reserved.
Information in this document is subject to change
without notice. The software described in this
document is furnished under a license agreement
or non-disclosure agreement. The software may be
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EM STUDIO, CST PARTICLE STUDIO, CST CABLE
STUDIO, CST PCB STUDIO, CST MPHYSICS STUDIO,
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and should be noted as such.
CST – Computer Simulation Technology AG
www.cst.com
CST PARTICLE STUDIO® 2011 – Workflow and Solver Overview
Contents
CHAPTER 1 — INTRODUCTION ............................................................................................................... 3
Welcome......................................................................................................................................3
How to Get Started Quickly .................................................................................................... 3
What is CST PARTICLE STUDIO®? ...................................................................................... 3
Who Uses CST PARTICLE STUDIO®? ................................................................................. 4
CST PARTICLE STUDIO® Key Features ...................................................................................5
General ................................................................................................................................... 5
Structure Modeling.................................................................................................................. 5
Particle Tracking Simulator ..................................................................................................... 5
Particle-in-Cell Simulator ........................................................................................................ 6
Wakefield Simulator ................................................................................................................ 7
Eigenmode Simulator ............................................................................................................. 7
Electrostatics Simulator .......................................................................................................... 8
Magnetostatics Simulator ....................................................................................................... 8
Visualization and Secondary Result Calculation ..................................................................... 8
Result Export .......................................................................................................................... 9
Automation ............................................................................................................................. 9
About This Manual .......................................................................................................................9
Document Conventions .......................................................................................................... 9
Your Feedback ....................................................................................................................... 9
CHAPTER 2 — SIMULATION WORKFLOWS...........................................................................................10
Simulation Workflow: Particle Tracking ..................................................................................... 11
The Structure ........................................................................................................................ 11
Start CST PARTICLE STUDIO® .......................................................................................... 12
Open the Tracking QuickStart Guide .................................................................................... 12
Define the Units .................................................................................................................... 13
Define the Background Material............................................................................................ 14
Model the Structure .............................................................................................................. 15
Define Potentials and Coils................................................................................................... 22
Define Boundary Conditions ................................................................................................. 27
Visualize the Mesh................................................................................................................ 29
Define Particle Sources ........................................................................................................ 31
Start the Simulation .............................................................................................................. 34
Analyze the Results .............................................................................................................. 36
Parameterization of the Model and the Automatic Optimization of the Structure .................. 40
Additional Information: The Particle Tracking Specials Dialog Box ...................................... 53
Summary .............................................................................................................................. 54
Simulation Workflow: Particle in Cell .........................................................................................55
The Structure ........................................................................................................................ 55
Start CST PARTICLE STUDIO® .......................................................................................... 56
Open the PIC QuickStart Guide ............................................................................................ 57
Define the Units .................................................................................................................... 57
Define the Background Material............................................................................................ 58
Model the Structure .............................................................................................................. 58
Define the particle source ..................................................................................................... 64
Define the ports .................................................................................................................... 66
Simulation Setup................................................................................................................... 68
Define particle monitors ........................................................................................................ 70
Start the Simulation .............................................................................................................. 71
Analyze the simulation results .............................................................................................. 71
Summary .............................................................................................................................. 75
Simulation Workflow: Wakefield ................................................................................................76
2
CST PARTICLE STUDIO® 2011 – Workflow and Solver Overview
The Structure ........................................................................................................................ 76
Start CST PARTICLE STUDIO® .......................................................................................... 77
Open the Wakefield QuickStart Guide .................................................................................. 77
Define the Units .................................................................................................................... 78
Define the Background Material............................................................................................ 79
Model the Structure .............................................................................................................. 79
Define the particle beam source ........................................................................................... 83
Define Boundary and Symmetry Conditions ......................................................................... 85
Visualize the Mesh................................................................................................................ 86
Define a 2D Time domain field monitor................................................................................. 89
Start the Simulation .............................................................................................................. 90
Analyze the simulation results .............................................................................................. 91
Additional Information: Wake Postprocessor ........................................................................ 93
Summary .............................................................................................................................. 96
CHAPTER 3 – COUPLED SIMULATIONS ................................................................................................97
Considering electromagnetic fields ............................................................................................97
Computation of electromagnetic fields .................................................................................. 97
Definition of analytic magnetic fields ..................................................................................... 97
Import of electromagnetic fields ............................................................................................ 98
Particle Interfaces .................................................................................................................... 101
Export of thermal losses .......................................................................................................... 102
CHAPTER 4 — FIND FURTHER INFORMATION....................................................................................103
The QuickStart Guide .............................................................................................................. 103
Online Documentation ............................................................................................................. 103
Examples ................................................................................................................................. 104
Technical Support.................................................................................................................... 104
History of Changes .................................................................................................................. 104
CST PARTICLE STUDIO® 2011 – Workflow and Solver Overview
3
Chapter 1 — Introduction
Welcome
Welcome to CST PARTICLE STUDIO®, the powerful and easy-to-use electromagnetic
field and charged particle dynamics simulation software. This program combines a user-
friendly interface with high simulation performance.
CST PARTICLE STUDIO® is part of the CST STUDIO SUITE™. Please refer to the
CST STUDIO SUITE™ Getting Started
manual first. The following explanations assume
that you have already installed the software and familiarized yourself with the basic
concepts of the user interface.
How to Get Started Quickly
We recommend you proceed as follows:
1.
2.
3.
4.
Read the
CST STUDIO SUITE™ Getting Started
manual.
Work through this document carefully. It provides all the basic information
necessary to understand the advanced documentation.
Work through the tutorials (Help
best suits your needs.
Contents)
by choosing the example which
Look at the examples folder in the installation directory. The different
application types will give you a good impression of what has already been
done with the software. Please note that these examples are designed to give
you a basic insight into a particular application domain. Real-world applications
are typically much more complex and harder to understand if you are not
familiar with the fundamentals of the software.
Start with your own first example. Choose a reasonably simple example which
will allow you to become familiar with the software quickly.
After you have worked through your first example, contact technical support for
hints on possible improvements to achieve even more efficient usage of CST
PARTICLE STUDIO®.
5.
6.
What is CST PARTICLE STUDIO®?
CST PARTICLE STUDIO® is a fully featured software package for the design and
analysis of electromagnetic components for accelerating and guiding charged particle
beams. It simplifies the structure generation by providing a powerful solid modeling front
end based on the industry-standard ACIS modeling kernel. Strong graphic feedback
simplifies the definition of your device even further. After the component is modeled, a
fully automatic meshing procedure (based on an expert system) is applied for the
electromagnetic computation before the simulation engine is started.
The simulators feature the Perfect Boundary Approximation (PBA)® feature, which
increases the accuracy of the electromagnetic simulation significantly in comparison to
conventional simulators. To calculate electromagnetic fields and analyze particle
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