Related Experiment Video
Updated: Feb 15, 2026

In Situ Characterization of Boehmite Particles in Water Using Liquid SEM
Published on: September 27, 2017
Acceptance Angle Control for Improved Transmission Imaging in an SEM
1National Institute of Standards and Technology, Applied Chemicals and Materials Division, 325 Broadway, Boulder, CO.
Abstract:
This contribution presents a simple, cost-effective modular aperture system enabling comprehensive acceptance angle control for STEM-in-SEM imaging. The system is briefly described, and different ways to use it are explained. To demonstrate the utility of the approach, a few samples are examined using the new system with comparisons to images from traditional SEM detectors. We show that the system enables conventional STEM imaging modes ranging from brightfield to high-angle annular darkfield (that is, Z-contrast), thin annular detection schemes, and even some non-conventional imaging modes.
Related Concept Videos
Hypothesis: Accept or Fail to Reject?
There are two ways to indicate that the null hypothesis is not rejected. 'Accept' the null...
Contact Angle
The adhesive force is the molecular force between molecules of different materials, that is, between the molecules of the solid and the liquid. The cohesive...
Open Angle Glaucoma: Treatment
Drugs such as carbonic anhydrase inhibitors, α2- and...
Angle of Twist: Problem Solving
Design Example: Traverse Angle Computations
Angle Closure Glaucoma: Treatment

