• Which Products are you interested in ?

    CST offers a wide range of EM simulation software to address design challenges across the electromagnetic spectrum, from static and low frequency to microwave and RF, for a range of applications, including EDA & electronics, EMC & EMI and charged particle dynamics.

  • CST STUDIO SUITE
  • CST EMC STUDIO
  • CST BOARDCHECK
  • Antenna Magus
  • IdEM
  • FEST3D
  • Optenni Lab
  • Looking for a Training, Workshop or eSeminar ?

    CST STUDIO SUITE® is being demonstrated at trade shows and workshops all over the world. Take a look at the list of conferences and exhibitions CST will be attending and get further information regarding CST workshops, eSeminars and training days.

  • TrainingsRegular training courses are held in CST's offices in Asia, Europe, and North America. Please check our trainings section for detail of trainings in all over the globe. Advance registration is normally required.

  • WorkshopsCST hosts workshops in multiple languages and in countries around the world. Workshops provide an opportunity to learn about specific applications and refresh your skills with experienced CST support staff. Make sure you visit our workshop section.

  • eSeminarsThroughout the year, CST simulation experts present eSeminars on the applications, features and usage of our software. You can also view past eSeminars by searching our archive and filtering for the markets or industries that interest you most.

  • Check our latest Events
  • Why create a MyCST Account ?

    A MyCST account may facilitate your access to many of the offerings on the CST website, for example the registration for eSeminars and the watching of eSeminars recordings, setting email preferences, and there is more functionality to come. It is required to participate in workshops and trainings.

  • Personal PreferencesAllows you to update your email preferences and areas of interest. It helps us to personalize your experience.

  • EventsSearch for events by location, industry and application. Once you are registered, you will be able to manage your registrations and check important details about your events. This section also provides you with a repository for Workshop & Training material.

  • LibraryYou can collect articles you find on the CST website to reference or read later by clicking on the “Add this article” button at the bottom of the article page.

  • Create Your Own Account
  • Need technical Support ?

    Customers can customize their accounts once they have completed the account creation process. This platform acts as vivid interface between CST and our customers.

    We therefore offer access to the latest Service Packs (including an automatic notification that a new Service Pack is available), a steadily growing database of Frequently Asked Questions (FAQs), Application Notes and Training Videos, as well as an individual FTP section for easy exchange of large files with our support team.

  • Do I need an Account?To access the Support Site a valid maintenance contract and a one-time registration is required.

    Please note that your Support login does not work for the MyCST account.

  • Get Support
  • How to request a Trial License ?

    Get your license in only three steps:

    1. Fill in the required fields in the contact form on the right and click "Send Us Your Request".

    2. Lean back and wait until one of our CST Experts contacts you.

    3. Enjoy a our trial license.

  • Student Edition

    Student Edition The CST STUDIO SUITE® Student Edition has been developed with the aim of introducing you to the world of electromagnetic simulation, making Maxwell’s equations easier to understand than ever. With this edition you have, bar some restrictions, access to our powerful visualization engine and some of the most advanced solvers of CST STUDIO SUITE.

    Student Edition

CST – Computer Simulation Technology

Consistent Charged Particle Simulation of a Pierce Gun

The pierce type gun example demonstrates the analysis of an electrically large gun configuration. The acceleration of the electrons takes place in only a small part of the computational domain, nearly 90% of the gun consists of a drift-tube.

The electric field is established by the cathode, which acts at the same time as particle source, a guiding electrode and the anode, which incorporates the drift-tube. The magnetic field is produced by a large current-driven coil and guided by a highly permeable cylinder which encloses the whole configuration.



Figure 1: Construction of the Pierce Gun

Figure 1 shows the geometry of the gun which consists of hollow cylinders forming the guide for the magnetic field, the drift tube, the emitting cathode and the focusing cathode. Typical construction features used to create the model include lofting, chamfering and blending operations. The geometric properties of the coils were created with the aid of two curves, one for the coil cross-section, the other for the coil sweep path....



Figure 2: Particle source with triangularised face

Three solvers have to be applied to perform this gun-analysis: First the E-static and M-static solver calculates the Electromagnetic fields which accelerate and focusing the particles. For the electrostatic calculation, the cathode was assigned a potential value of 0V, while the anode carries a potential of 90 KV. The magnetic coil is driven by a current of 1000 Ampere-Turns. The particle source, shown in Figure 2, covers the concave face of the cathode and emits the particles. The gun-iteration is then performed: the space-charge limited emission model was applied so that particles are emitted as long as the field in the near of the particle surface is larger than zero.



Figure 3: Electric and magnetic fields at the location of the cathode

Figure 3 shows the electric and magnetic fields on a central plane through the cathode.



Figure 4: Trajectory plot showing the velocities of the charged particles

All electromagnetic field quantities are available. Figure 4 shows a typical trajectory plot of the particle velocities in the pierce gun. Other impulses included are the energy, beta and gamma. These can be visualized in time using the animation plot features in CST PS. Other quantities resulting from the Gun iteration can also be viewed: the magnetic energy, the electric energy, the emitted current and the perveance of the particle source over the iteration cycles.

As in all of CST's products, full parameterization and optimization modules are included as default. Full CAD support complements these facilities to ensure rapid model creation and simulation.

Rate this Article

0 of 5 Stars
5 Stars
0%
4 Stars
0%
3 Stars
0%
2 Stars
0%
1 Stars
0%
contact support

Your session has expired. Redirecting you to the login page...

We use cookie to operate this website, improve its usability, personalize your experience, and track visits. By continuing to use this site, you are consenting to use of cookies. You have the possibility to manage the parameters and choose whether to accept certain cookies while on the site. For more information, please read our updated privacy policy


Cookie Management

When you browse our website, cookies are enabled by default and data may be read or stored locally on your device. You can set your preferences below:


Functional cookies

These cookies enable additional functionality like saving preferences, allowing social interactions and analyzing usage for site optimization.


Advertising cookies

These cookies enable us and third parties to serve ads that are relevant to your interests.