The Most Powerful Electron Microscopes in the World electronmicroscopes microscopy nanotechnology nanoscience
By Rebecca Ingle, Ph.DSep 26 2022 Now, electron microscopy has become a workhorse tool in materials development for both research work as well as manufacturing quality control.How are Electron Microscopes Used? There are a number of electron microscopy techniques, such as cryo-electron microscopy, that are normally used for imaging biological structures. Some of the most widely used electron microscopy techniques include scanning electron microscopy and transmission electron microscopy .
However, one of the challenges when building an electron microscope is finding ways to control the electron beam. The electron beam needs to be tightly focused on the sample, as the spot size of the beam is linked to the maximum achievable spatial resolution. However, focusing electrons is challenging as they are negatively charged particles.
Some of the most powerful electron microscopes in the world include the Thermo Fisher ThemIS transmission electron microscope housed at the Lawrence Berkeley Laboratories, the Themis-Z microscope in the University of Sydney and new analysis and instrumentation development at Cornell University that has recently set new records for the level of spatial resolution achievable to 20 picometers.
Research Innovations in Electron Microscopes Electron microscopy instruments have become more commonplace in research and industrial laboratories are their use is likely to continue to increase as instrumentation becomes more affordable. For nanotechnology, imaging at the atomic level has already been a very real possibility, but improved accessibility of electron microscopy techniques means that it is possible to get a better understanding of the structure-function relationships at this size scale.
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