4D Scanning Transmission Electron Microscopy (4D STEM) provides crucial insights into materials structures by utilizing Differential Phase Contrast (DPC), ptychography, orientation and strain mapping. The software available on this page deals with treatment of 4DSTEM data. In particular, TEMDM applies intensively Multivariate Statistical Analysis (MSA), i.e. Principal Component Analysis (PCA) for denoising data.
Stand-alone tool for treatment 4DSTEM datasets.
Main Features:
>> Read some formats of 4DSTEM datasets. Currently supported formats:
| Developer | Extension | Read | Write |
| DigitalMicrograph (Ametek) | dm3,dm4 | 4D | No |
| EMPAD | raw | 4D | No |
>> Provides convenient data visualization with virtual circular / ring apertures; makes clipping and recentering data in the direct and diffraction space.
>> Perform “silent” (no user interaction) PCA denoising of 4DSTEM datasets. An automatically determined number of principal components can be further changed
>> Allows for clustering data in the latent factor space with visualizing cluster spatial shapes and spectral signatures.
For Windows:
For Linux:
