期刊
ULTRAMICROSCOPY
卷 111, 期 5, 页码 330-336出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.ultramic.2011.01.021
关键词
Experimental resolution measure; Quantitative electron tomography
类别
资金
- European Union [026019 ESTEEM]
- Dutch Ministry of Economic Affairs
- Scientific Research Flanders [G.0247.08]
It is not straightforward to determine resolution for a 3D reconstruction when performing an electron tomography experiment. Different contributions such as missing wedge and misalignment add up and often influence the final resolution in an anisotropic manner. The conventional resolution measures can not be used for all of the reconstruction techniques, especially for iterative techniques which are more commonly used for electron tomography in materials science. Here we define a quantitative resolution measure that determines the resolution in three orthogonal directions of the reconstruction. As an application we use this measure to determine the optimum number of simultaneous iterative reconstruction technique (SIRT) iterations to reconstruct the gold nanoparticles, based on a high angle annular dark field STEM (HAADF-STEM) tilt series. (C) 2011 Elsevier B.V. All rights reserved.
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