Ernst Ruska-Centre

Forschungszentrum Jülich - Germany

The Ernst Ruska-Centre for Microscopy and Spectroscopy with Electrons (ER-C), which is conjointly operated by the Jülich Research Centre and RWTH Aachen University, was established in 2004. It is the first national centre of excellence in Germany for methodological developments and applications of high-resolution electron microscopy and spectroscopy, with a specific focus on aberration-corrected electron microscopy. The ER-C is co-directed by Professors Rafal E. Dunin-Borkowski (Jülich) and Joachim Mayer (Aachen) and contains an extensive range of state-of-the-art electron microscopes, including a newly-installed chromatic aberration corrected FEI Titan3 G2 50-300 G2 PICO instrument and an FEI Titan G2 60-300 microscope dedicated to electron holography and in situ electron microscopy experiments.
The ER-C contains more than 30 staff who have expertise in the development of advanced methods in electron optics, quantitative image analysis and spectroscopy on the atomic scale, electron holography, electron tomography and in situ electron microscopy. Recent scientific activities include measurements of lattice distortions in crystalline solids using negative Cs imaging with a precision of one picometre, measurements of lens aberrations and information limits in electron microscopes, simultaneous acquisition of HAADF images and monolayer resolved EELS signals, atomic-scale bright-field electron tomography using negative Cs imaging at low accelerating voltages, software development for computer-based retrieval of quantum-mechanical object wave functions from defocus series of images and high-precision analysis and correction of residual electron optical aberrations.

Local contact:

Rafal Dunin Borkowski - This email address is being protected from spambots. You need JavaScript enabled to view it.