Chapter/Index: Introduction | A |
B |
C |
D |
E |
F |
G |
H |
I |
J |
K |
L |
M |
N |
O |
P |
Q |
R |
S |
T |
U |
V |
W |
X |
Y |
Z |
Appendix
FEI TEMs
| The commercially standard condenser lens system in FEI TEMs has three condenser lenses. This system provides variable probe-convergence angles in STEM mode and adjustable parallel illumination in TEM mode.
Table 2763. FEI TEMs. "X-FEG" stands for eXtreme Field Emission Gun. It is a type of electron source used in TEM that provides a high-brightness, high-coherence electron beam. |
| Feature |
Tecnai G2 Spirit [5] |
Tecnai G2 F20 X-TWIN [4] |
Titan 80-300 [3] |
Titan Themis [2] |
| Acceleration Voltage |
120 kV |
200 kV |
80–300 kV |
60–300 kV |
| Electron Source |
LaB6 |
Field Emission Gun (FEG) |
Field Emission Gun (FEG) |
X-FEG Schottky FEG |
| Resolution (Point-to-Point) |
0.36 nm |
0.25 nm |
Sub-Ångström |
~70 pm |
| Imaging Capabilities |
High-contrast imaging with a TWIN lens |
STEM imaging, EDS, EELS; CCD camera for standard TEM imaging |
Aberration-corrected STEM, advanced high-resolution imaging |
Spherical aberration correction, advanced EDX, and EELS capabilities |
| Spectroscopy and Analytical Tools |
|
|
Advanced analytical capabilities |
|
| Advanced Correction Technologies |
|
|
Advanced aberration correction for STEM |
CEOS DCOR spherical aberration corrector |
| Use Cases |
General Purpose (Education/Basic Research) |
Advanced Research and Materials Science |
[1] https://ncmn.unl.edu/enif/fei-tecnai-osiris-stem.
[2] https://cemas.osu.edu/capabilities/thermo-scientific-themis-z-stem.
[3] https://www.engineering.virginia.edu/facilities-equipment/nanoscale-materials-characterization-facility/instrumentation/electron-microscopes/themis-60-300-kv-transmission-electron-microscope-tem.
[4] https://www.monash.edu/researchinfrastructure/mcem/facilities/fei-tecnai-g2-f20-s-twin-tem.
[5] https://www.huck.psu.edu/core-facilities/microscopy-facility/services-instrumentation/electron-microscopes/fei-tecnai-g2-spirit-biotwin.
[6] https://mrl.illinois.edu/facilities/equipment/ThermoFisher-Scientific-TalosF200X-G2.
|
