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BD-15: Quality assurance of medical X-ray systems with a novel spectroscopic pixel detector

Evaluation of various test samples for use in a novel spectroscopic pixel detector

Project objective(s)

This project is to provide a deeper understanding of the use of spectroscopic pixel detectors in clinical radiology environments. Its aim is the evaluation of different prototypes and the examination of different filter geometries and materials with respect to their suitability in such a measuring system. The key challenges here are the high radiation doses and dose rates as well as the great number of possible settings in new X-ray systems.  

Brief project description

The project is a collaboration between the University of Erlangen and IBA Dosimetry GmbH. In this project, IBA Dosimetry GmbH focuses on the development and prototyping of the readout electronics and software, the key challenges being the handling and real-time processing of the data at high rates.

Together with the FAU, radiation measurements are performed at different radiation sources that are available in the company's secondary standard laboratory (SSDL). This includes measurements at industrial X-ray systems as well as clinical mammography and radiography systems.

A deeper understanding of the detector system, however, can only be gained through detailed simulations. For this, the Radiation Physics group within the chair held by Prof. Anton at the Erlangen Center for Astroparticle Physics (ECAP) at the University of Erlangen-Nuremberg (FAU) will carry out simulations to reproduce the monoenergetic response functions of the Dosepix detector, the development of reconstruction methods and the development of pile-up corrections to expand the dynamic range of the novel sensor.

Project Duration

01.11.2012 - 30.04.2015

Project Partners

  • IBA-Dosimetry GmbH
  • Friedrich-Alexander-University Erlangen-Nuremberg (FAU)


Dr. Thilo Michel
Friedrich-Alexander-University Erlangen-Nuremberg

Uwe mollenhauer
IBA-Dosimetry GmbH

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