Glossary of TEM Terms

Supervised by

Michiyoshi Tanaka
Professor Emeritus at Tohoku University

Created by



"Glossary of TEM Terms" aims to assist understanding of the basic technical terms of Microscopy, Diffractometry and Spectroscopy of the transmission electron microscope (TEM) field. The glossary contains approximately 800 terms, which have been selected from theoretical, instrumental, crystallographic terms, specimen preparation, image processing, etc., in consideration of recent developments in the TEM field. We have strived for clear and unambiguous descriptions with an easy-to-understand manner using illustrations, TEM images and various spectral data. For the terms that are used also in other scientific fields, we focus the explanations in conformity with TEM. For highly specialized terms, we are very grateful to the professional experts for their cooperation in writing manuscripts, proofreading and data providing.
For further comprehension, references to textbooks or corresponding literatures are recommended. We continue our efforts in enlargement and improvement of the Glossary by adding new terms and enrichment of illustrations, TEM images and spectral data.
We hope that this Glossary of TEM Terms would help better understanding of TEM techniques and its effective use for TEM users.


Masami Terauchi (Professor of IMRAM, Tohoku University), Kenji Tsuda (Professor of Frontier Research Institute for Interdisciplinary Sciences, Tohoku University), Koh Saitoh (Professor of Department of Crystalline Materials Science, Graduate school of Engineering, Nagoya University) and Staff of Technical Development Department, EM Business Unit at JEOL Ltd. Many other scientists and engineers are also acknowledged.

Note: The affiliations of people who kindly provided data are at the time when the data were provided.

Terms are added or updated

  • March 08, 2021
    update higher-order Laue zone (HOLZ) reflection
  • March 08, 2021
    update momentum transfer resolved electron energy-loss spectroscopy
  • January 27, 2021
    update condenser mini lens
  • January 27, 2021
    update electron energy-loss spectroscopy
  • November 02, 2020
    update missing wedge (missing cone)
  • September 15, 2020
    update micro electron diffraction method, Micro ED
  • August 28, 2020
    update <em>α</em> fringe
  • August 28, 2020
    update δ fringe
  • August 18, 2020
    update condenser-objective lens (C-O lens)
  • July 23, 2020
    update objective lens