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Experimental Evaluation of Undersampling Schemes for Electron Tomography of Nanoparticles
Author(s) -
Vanrompay Hans,
Béché Armand,
Verbeeck Johan,
Bals Sara
Publication year - 2019
Publication title -
particle and particle systems characterization
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.877
H-Index - 56
eISSN - 1521-4117
pISSN - 0934-0866
DOI - 10.1002/ppsc.201900096
Subject(s) - undersampling , tilt (camera) , electron tomography , characterization (materials science) , materials science , series (stratigraphy) , nanoparticle , computer science , pixel , projection (relational algebra) , tomography , computer vision , nanotechnology , optics , algorithm , physics , transmission electron microscopy , scanning transmission electron microscopy , mathematics , geometry , geology , paleontology
Abstract One of the emerging challenges in the field of 3D characterization of nanoparticles by electron tomography is to avoid degradation and deformation of the samples during the acquisition of a tilt series. In order to reduce the required electron dose, various undersampling approaches have been proposed. These methods include lowering the number of 2D projection images, reducing the probe current during the acquisition, and scanning a smaller number of pixels in the 2D images. A comparison is made between these approaches based on tilt series acquired for a gold nanoparticle.