2 papers
physics.comp-ph2022
Deep Reinforcement Learning for Data-Driven Adaptive Scanning in Ptychography
Marcel Schloz, Johannes Müller, Thomas C. Pekin +2
We present a method that lowers the dose required for a ptychographic reconstruction by adaptively scanning the specimen, thereby providing the required spatial information redunda…
physics.app-ph2021
Fast Grain Mapping with Sub-Nanometer Resolution Using 4D-STEM with Grain Classification by Principal Component Analysis and Non-Negative Matrix Factorization
Frances I Allen, Thomas C Pekin, Arun Persaud +5
High-throughput grain mapping with sub-nanometer spatial resolution is demonstrated using scanning nanobeam electron diffraction (also known as 4D scanning transmission electron mi…