Advances in Quantification and Resolution in Electron Tomography

• Applicant: Professorin Dr. Ute Kaiser
• Subject Area: Synthesis and Properties of Functional Materials
• Term: from 2006 to 2011
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 27809365

Within the scope of this project we want to understand the resolution limit of our recently suggested Z-contrast method, high angle centred dark-field (HACDF) and evaluate its potential for atomic resolution. Furthermore we want to reveal its capability for electron tomography in a conventional TEM and compare to those of the two other TEM-Z-contrast imaging modes: hollow cone illumination and annular dark-field with circular objective aperture. The aim is to establish a robust and reliable dark-field tomographic method for conventional TEM, aimed for medium resolution material science applications. The HAADF STEM method will be used as a reference. We will also revise and by necessity develop alignment and reconstruction algorithms.

• DFG Programme: Research Grants
• Participating Person: Dr. Johannes Biskupek