Digital image publication for backscatter SEM micrographs

Abstract

A number of limitations impede visualization and interpretation of backscatter SEM images reproduced photographically in technical journals and proceedings. The size of the image presented is often too small to visualize all of the details discussed by the author. Often the loss of contrast and of detail in the half tone reproduction processes used severely limits the information actually conveyed to the reader. In contrast, digital images can be readily reproduced in any desired size without loss of detail. Such images can be readily obtained, stored and manipulated (if necessary) in computer files, and printed out by standard laser printers. The writer is of the opinion that the publication of such digital images instead of conventional photographic reproductions vastly increases the clarity and effectiveness of the visual information actually transmitted to the reader. Several examples of backscatter SEM images of concrete are provided to illustrate the potentials of this method.