University of Southern California Edward Goo.
All questions are of equal value.
Show your work. Explain why in a SEM one needs to compromise resolution to obtain a large depth of field. Draw a ray diagram for a TEM and be sure to label the important features. Suppose you were given a piece of zirconia that was a cube, one centimeter in length, describe the steps and the equipment you would use to make a TEM sample. Explain how one would do quantitative analysis of a sample with three elements Fe, Si and Ti using the thin film approximation and a standard.