question archive A butterfly wing sample studied by a Scanning Electron Microscopy (SEM) must be placed in a vacuum with a black carbon glue and a AuNi coating placed on the surface of the butterfly wing
Subject:ChemistryPrice: Bought3
A butterfly wing sample studied by a Scanning Electron Microscopy (SEM) must be placed in a vacuum with a black carbon glue and a AuNi coating placed on the surface of the butterfly wing. Explain in details what signals are generated in a SEM and identify which signal is used to form a grey scale image in a SEM. What are the purposes of having a vacuum, carbon glue and coating?