Skip to main content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.


The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

A Programmable Transmission Electron Detector for Nanomaterials Characterization in a Scanning Electron Microscope



Jason D. Holm, Benjamin W. Caplins, Robert R. Keller


A new programmable detector for scanning transmission electron microscopy (pSTEM) is described. A digital micromirror array lies at the heart of the detector and serves as a programmable virtual objective aperture. Two sensors, a photomultiplier tube and a CMOS digital camera are used to enable real-space transmission imaging and on-axis diffraction, respectively. Detector operation is demonstrated with several samples in a conventional scanning electron microscope (SEM).
TechConnect World Technical Proceedings
TechConnect Briefs 2019


scanning, transmission, electron microscopy, diffraction, programmable
Created June 17, 2019, Updated August 28, 2019