Basics of Scanning Electron Microscopy: Secondary Electron and BSE imaging mode

1) Which signals arise from top 1 nm of the sample?
2) Which signals arise from top 5-10 nm of the sample?
3) Which signals arise from top 0.5-1 µm of the sample?
4) Secondary electron is ______________________ electron.
5) Backscattered electron is ______________________ electron
6) The typical vacuum level in SEM is
7) What could be the possible order of steps of SEM machine?
a.Start beam
b.Obtaining required vacuum
c.Switching on the Filament
d.Loading the sample
8) In which mode the following image is taken, where the phases are identified?
9) In which mode the following image is taken, where the topographic features are clearly identified?