- document
-
Cook, B.J. (author), Verduin, T. (author), Hagen, C.W. (author), Kruit, P. (author)Emission theory predicts that high brightness cold field emitters can enhance imaging in the electron microscope. This (neglecting chromatic aberration) is because of the large (coherent) probe current available from a high brightness source and is based on theoretically determined values of reduced brightnesses up to 1014?A/(m2?sr?V). However,...journal article 2010
- document
-
Hagen, C.W. (author), Fokkema, E. (author), Kruit, P. (author)The virtual source size of a liquid metal ion source is an order of magnitude larger than the size of the region from which the ions are emitted at the source. This source size has a direct effect on the reduced brightness and, hence, on the performance of these sources. The variation of the virtual source size of a gallium liquid metal ion...journal article 2008