| Topic | Description |
|---|---|
| Overview | A brief overview of the SEM, including an interactive diagram of the main components |
| The Electron Gun | This section describes the thermionic and field emission electron guns, and includes a simulation on the thermionic gun |
| The Lens System | This section describes the working of an electromagnetic lens and covers the effect of the condenser lens in the SEM |
| Everhart Thornley Detector | A short section showing how the detector works, including a simulation |
| Scanning System | A short section describing the scanning system of an SEM and the three different imaging modes that can be used |