Welcome to DPDAK

DPDAK is an open source (GPL) tool developed for (online) analysis of large sequences of small angle scattering data - but can be used for other data as well. It is written in Python and runs on Windows and Linux. The development is a cooperation between DESY and MPIKG.


The plugins ImageIntegration1d and SAXS/WAXS calibration use algorithms from the pyFAI package by Jerome Kieffer (ESRF).


The latest release is 1.4.1:

           Download Windows version as zip-file: dpdak_win64bit_v1_4_1.zip

           The Linux installation is just from source. To use the source package of dpdak you need to install the free Python programming language and some additional libraries.

           Most Linux systems have Python installed by default.

           The current version of dpdak needs the following Python version and packages:

           Please make sure to choose the correct package versions for your Python installation, e.g. if you installed Python 2.7.11 32-bit you need to install all packages in their 2.7 version for 32-bit as well.

Download Linux version as zip-file: dpdak_Linux_v1_4_1.zip

For changes with respect to the previous version v1.3.1, please read the Release Notes v1.4.1.

You can find older releases at the Download page or in the Git repository.

Development/Test downloads

In order to prepare upcoming releases and test new features, you can try the development releases.

If you test these, please reply any issues or comments to the mailing list: dpdak@desy.de

You can find the downloads on the Development Releases page.


Citation and Publication

If you use DPDAK in your publication, please cite it. The reference is:

A customizable software for fast reduction and analysis of large X-ray scattering data sets: applications of the new DPDAK package to small angle X-ray scattering and grazing-incidence small angle X-ray scattering, Benecke, G. et al., J. Appl. Cryst. 47, 1797-1803, (2014), doi:10.1107/S1600576714019773.