Author/Authors :
Uhlemann، نويسنده , , Stephan and Rose، نويسنده , , Harald، نويسنده ,
Abstract :
The acceptance of imaging filters used in energy-filtering transmission electron microscopy is discussed. It is shown that the acceptance of all presently available filters is nearly equal. The acceptance of in-column filters can be increased by two orders of magnitude if the dispersion is enlarged and the second-order aberrations are eliminated.