Imaging, Electron Microscopy
Electron microscopy is the method by which electrons interact with a sample and are collected to detect a signal or change in sample density. This density is then either transferred onto a photographic plate or digitally recorded to create an electron micrograph.
Electron microscopy is an imaging technique used by those who require a higher resolution than conventional light microscopy allows. Electrons are emitted from a filament tip and are accelerated and focused into a beam that targets and interacts with a sample. Electrons are then collected, and an image is recorded based on the results of those interactions.
Electron microscopy is often applied to samples of either biological origins or inorganic materials, including metals and crystals. Biological specimens include microorganisms, fixed tissue samples, and small structures, ranging down to large molecules or proteins.