A sub-sampled approach to extremely low-dose STEM

Stevens, A, Luzi, L, Yang, H, Kovarik, L, Mehdi, BL, Liyu, A, Gehm, ME and Browning, ND (2018) A sub-sampled approach to extremely low-dose STEM. APPLIED PHYSICS LETTERS, 112 (4). 043104-.

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Abstract

<jats:p>The inpainting of deliberately and randomly sub-sampled images offers a potential means to image specimens at a high resolution and under extremely low-dose conditions (≤1 e−/Å2) using a scanning transmission electron microscope. We show that deliberate sub-sampling acquires images at least an order of magnitude faster than conventional low-dose methods for an equivalent electron dose. More importantly, when adaptive sub-sampling is implemented to acquire the images, there is a significant increase in the resolution and sensitivity which accompanies the increase in imaging speed. We demonstrate the potential of this method for beam sensitive materials and in-situ observations by experimentally imaging the node distribution in a metal-organic framework.</jats:p>

Item Type:	Article
Uncontrolled Keywords:	51 Physical Sciences, Biomedical Imaging, 4.1 Discovery and preclinical testing of markers and technologies
Depositing User:	Symplectic Admin
Date Deposited:	06 Nov 2018 16:35
Last Modified:	19 Jul 2024 08:44
DOI:	10.1063/1.5016192
Related URLs:	Author Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3019702