3 COMPOSITION AND CONSTRUCTION
EM210F-1
3-3
3.3.2 Column
Interior
Field limiting aper ture assembly
Viewing chamber isolation
valve
Projector lens coil
Condenser lens stigmator
coil
Intermediate lens stigmator coil
Gas inlet
Electron gun 1st beam deflector coil
Binoculars
Accelerating tube
Condenser lens 1st beam
deflector coil
Intermediate lens coil
High resolution diffraction
chamber
Large screen
Electron gun 2nd beam deflector coil
1st condenser lens coil
Electron gun
Electron gun chamber isolation valve
Objective lens coil
Receiving magazine
2nndd condenser lens coil
Goniometer
Specimen holder
Small screen
Camera chamber
Viewing chamber
Viewing window
Dispensing magazine
Fig 3.3 Cross section of column