lens **
electron lens

The majority of electron lenses for TEM utilise electromagnetic coils to generate a convex lens.

Tom was intent on the electron lenses he was constructing, but when he glanced up, he could tell by Ames's expression that something was wrong.

The electrons are accelerated and focused into a beam, typically about 0.1 to 0.5 mm wide, by a series of electrodes serving as electron lenses.

Furthermore, electron lenses allows the geometry of the diffraction experiment to be varied.

These electron are then focus using electron lenses inside the intensifier to an output screen coated with phosphorescent materials.

This gun, combined with inventions in electron lenses and detection, led to the development of the highest resolution microscope at that time.

Quantum theory of electron lenses based on the Dirac equation.

The resolution of conventional electron microscopy is not limited by electron wavelength, but by the large aberrations of electron lenses.

The task of the monochromator is to reduce the energy of the passing electrons to some eV due to the help of electron lenses.

Unfortunately, the resolution of electron microscopes is limited not by the electron wavelength, but by intrinsic imperfections of electron lenses.