Field Emission Scanning Electron Microscope

High-resolution field emission scanning electron microscope (HR-FESEM) and EDAX

High-resolution field emission scanning electron microscope (HR-FESEM) and EDAX

High Resolution Transmission Electron Microscope (HRTEM) with EDAX

Instrument specification

Thermo Scientfic Verios G4 UC High resolution field emission scanning electron microscope (FESEM) operates at a variety of voltages ranging from 2 – 30 kV. It has Schottky FEG electron gun having an adjustable probe current ranging between 0.8 nA – 100 nA. It has a magnification of over 1,000,000 x providing a high resolution of 0.6 nm. FESEM operates under a vacuum system that is entirely oil-free. Differential pumping on the electron column ensures tip operation at the ultra-high vacuum levels (10-10 mbar).

Technicalities

The Verios G4 UC features through-the-lens (TLD) SE and BSE detection specifically designed for high-resolution

imaging at both high and low kVs, as well as an Everhart-Thornley SE detector for conventional SE detection. The in-lens SE detector features a technique where the energy range of the detected secondary electrons can be selected. The sample stage can be rotated 360 o and tiled to – 60 o making the system very versatile. Scan rate for the system ranges from 50 ms all the way upto 50 s.

Publications and other resources on this website may be downloaded only for academic and non-commercial purposes Page Views:

Our Visitors

1 0 2 8 9 5
Total views : 274303

For teachers and students using the book, Nano: The Essentials, download teaching materials here