Related Experiment Video
Updated: Feb 2, 2026

An Unbiased Approach of Sampling TEM Sections in Neuroscience
Published on: April 13, 2019
TEMUC3, a computer program for unit-cell determination of crystalline phases in TEM experiments
1Nebraska Center for Materials and Nanoscience, University of Nebraska, Lincoln, NE, 68588, United States.
Abstract:
A new computer program, TEMUC3, has been developed for unit-cell determination of crystal phases using electron diffraction data. A graphic user-friendly interface was designed for the following operations, (i) a reciprocal lattice is reconstructed from a tilt series of electron diffraction patterns; (ii) a Niggli cell is generated from the two electron diffraction patterns in a tilt series; iii) a Niggli cell is generated from three electron diffraction patterns, in which each pair shares a common reflection vector; (iv) a conventional unit-cell is converted from a Niggli cell; (v) a unit-cell is refined from a set of reflections. The application of TEMUC3 is further elucidated in three examples. A brief discussion on the generation of a primitive cell from electron diffraction data and the cell reduction in reciprocal and direct space is presented.
Related Concept Videos
Polymer Classification: Crystallinity
Crystalline domains are the regions where polymer chains are aligned in an orderly manner and held together in proximity by intermolecular forces. For example, chains in the crystalline domains of polyethylene and nylon are bound together by van der Waals...
Measurement: Standard Units
Measurement: Derived Units
Phase Diagrams
Units of Measurement
There are various well-known historical measurement systems, such as the Babylonian system, the Roman system, the Egyptian system, the Olympian system, the British system, and the Indus...
International System of Units
Prefixes are used to define both larger and smaller quantities in the SI system. For example, milli, micro, and nano define smaller quantities, while kilo, mega, and giga are used to define...

