developed by W. Möller

The TRIDYN computer simulation describes ion irradiation effects in amorphous multicomponent material systems with a planar surface, and keeps track of the dynamic modification of the system due to ion implantation, atomic relocation, sputtering and thin film deposition. TRIDYN is based on the binary collision approximation.

A practically unlimited number of different atomic species and up to 20 irradiation/deposition conditions with different incident species, energies and angles of incidence may be simultaneously treated.

The code allows to predict 1D compositional and damage profiles, surface erosion (when sputtering prevails) or surface extension (when deposition prevails), and provides detailed statistics on ion slowing down, recoil transport and ion mixing, sputtering and vacuum/solid transitions. It may also be run in static mode.

The executable version is available for Linux and MS Windows environments.

Typical cases of application (schematic)

Foto: TRIDYN example ©Copyright: Prof. Dr. Wolfhard Möller

© W. Möller


For detailed examples of application, see here.

If you have any technical questions related to the software, please contact Prof. Wolfhard Möller.

How to get the TRIDYN code?

for non-commercial application:

For a free license, a software license agreement is required:

Please fill in the End-Use Certificate (manual downloadable here) and send it to for review in advance.

After a successful export control check, we will send you the contract template of the License Agreement.

We kindly ask you to then print out the approved EUC and the License Agreement twice each. Please sign all documents and send the original License Agreement (2x)  and the original EUC (2x) by mail to

Helmholtz-Zentrum Dresden - Rossendorf e. V.

Board Office | Legal Affairs

Bautzner Landstraße 400

01328 Dresden


If you have any technical questions relating to the software, please contact Prof. Dr. W. Möller (

If you have any questions regarding the License Agreement, please contact

for commercial application:

For commercial application, the software is licensed by HZDR Innovation GmbH