Achieving nanosecond time resolution with a two-dimensional X-ray detector
The fastest pixel array X-ray detectors can record images with nanosecond resolution. This is accomplished by storing only a few images in in-pixel memory cells. In this study, we demonstrate nanosecond resolution over a large number of images by operating a prototype detector in an event driven mode. The performance of this mode is tested by measuring the Brownian dynamics of colloidal nanoparticles. We can achieve sub-100 ns time resolution and overcome the pixel dead time by applying a cross-correlation analysis of the neighboring pixels. The approach used in this work can be extended to study time-resolved fast processes with diffraction, scattering or imaging techniques.
Authors
- Marco Cammarata (ORCID: https://orcid.org/0000-0003-3013-1186)
- Jonathan Correa (ORCID: https://orcid.org/0000-0001-7336-6765)
- Björn Senfftleben (ORCID: https://orcid.org/0000-0003-1716-5445)
- H. Graafsma (ORCID: https://orcid.org/0000-0003-2304-667X)
- David Pennicard (ORCID: https://orcid.org/0000-0001-9288-4859)
- Yuriy Chushkin (ORCID: https://orcid.org/0000-0003-2478-6063)
- Fabian Westermeier (ORCID: https://orcid.org/0000-0003-0696-206X)
- Felix Lehmkühler (ORCID: https://orcid.org/0000-0003-1289-995X)
- Sebastian Karl (ORCID: https://orcid.org/0000-0001-9920-9215)
- Alexandr Ignatenko (ORCID: https://orcid.org/0000-0002-4605-0279)
- Sabine Lange
- Sergei Fridman
Institutions
- Universität Hamburg (DE)
- Friedrich-Alexander-Universität Erlangen-Nürnberg (DE)
- Deutsches Elektronen-Synchrotron DESY (DE)
- European Synchrotron Radiation Facility (FR)
- Center for Free-Electron Laser Science (DE)
- Max Planck Institute for the Structure and Dynamics of Matter (DE)
- Hamburg Centre for Ultrafast Imaging
- Friedrich Schiller University Jena (DE)
- European X-Ray Free-Electron Laser (DE)
Publication Details
- Journal
- Journal of Synchrotron Radiation
- Published
- 2025-08-04
- DOI
- https://doi.org/10.1107/s1600577525006599
- Primary Topic
- Advanced X-ray Imaging Techniques
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Deutsche Forschungsgemeinschaft
- European Synchrotron Radiation Facility