Chinese scientists have unveiled the world's smallest known dinosaur eggs ... Using advanced techniques such as scanning electron microscopy and electron backscatter diffraction, scientists ...

In scanning electron microscopy, a thermionic electron source such as a tungsten ... Because of the microscopic size of the electron source, the beam produced by this emitter is one of the smallest ...

SEM stands for scanning electron microscope. The SEM is a microscope that uses electrons instead of light to form an image. Since their development in the early 1950's, scanning electron microscopes ...