Why must a specimen that is to be viewed in the SEM have no water in it?
A)Water causes the specimen to swell.
B)Water distorts the image.
C)The specimen will be observed in a vacuum,which will cause the water to freeze.
D)The specimen will be observed in a vacuum,which will cause the water to evaporate rapidly and damage the specimen,altering its surface structure.
E)Water attracts electrons.

Question

Quizplus · Accepted Answer

Water will evaporate rapidly in a vacuum, which can damage the specimen and alter its surface structure. Therefore, specimens that are to be observed in the SEM must be completely dry before the imaging process begins.

Why Must a Specimen That Is to Be Viewed in the SEM