Field Emission Scanning Electron Microscopy
FESEM is the abbreviation of Field Emission Scanning Electron Microscope. A FESEM is microscope that works with electrons (particles with a negative charge) instead of light. These electrons are liberated by a field emission source. The object is scanned by electrons according to a zig-zag pattern.
About Instrument and its Applications:
FESEM is Microscope that works with Electron (Particles with negative charge) instead of Light. These Electrons are Liberated by a Field Emission Source . The Object is Scanned by a Field Emission Source. The Object is Scanned by Electrons according to Zig-Zag Pattern. These Electrons goes to the Detector and after Amplify the signals It provide the Images in the form of Morphological (surface topography), Composition (Chemical Information). ENERGY DISPERSIVE X-RAY SPECTROSCOPY (EDAX) EDAX is an elemental chemical microanalysis technique performed in conjunction with FESEM. Features of EDAX- Elemental mapping analysis, Line scanning analysis, Point scanning analysis
General Information-
Model –MIRA 3 LMH
Year of Installation - 2012
Magnification at 30Kv - 3.5x – 10,00,000x
Electron Gun – High Brightness Schottky Emitter
Resolution - Secondary Electron(SE) - 1.2nm at 30Kv, 1.5nm at 15Kv, 2.5nm at 3Kv, 4.5nm at 1Kv
SE( Secondary Electron Detector Everhart-thornley type
BSE( Back scattered Electron Detector Scintillator Type

Measurement Modes:
Energy Dispersive X-ray spectroscopy(EDX)
Sample Requirements-
1. Specimen Size- Standard specimen holder Diameter-12.5mm,height -3mm
2. Sample Requirement- Only powder and solid sample