The 200kV FEI monochromated F20 UT Tecnai is designed to produce optimum high resolution performance in both TEM and STEM. In addition, the incorporation of a monochromator into the gun permits electron energy loss spectroscopy to be performed with an energy resolution of ~0.15eV. This microscope features a 2048×2048 CCD camera positioned after the Gatan Imaging Filter (GIF) that can be used for both dedicated spectroscopic analysis and energy-filtered imaging. This microscope is optimized for materials applications that require either the highest resolution STEM performance (imaging and spectroscopy) or correlated imaging and analytical methods (TEM and STEM).
Specifications
| Accel. Voltage: | 200 (and 120) kV |
| Spherical Aberration Cs: | 0.5 mm |
| Chromatic Aberration Cc: | 1.1 mm |
HRTEM
| Scherzer resolution | 0.19 nm |
| Information limit (monochromator off) | 0.12 nm |
STEM Spatial Resolution
| Monochromator off | 0.14 nm |
| Monochromator on | 1.0 nm |
EELS Energy Resolution
| Monochromator off | 500 meV |
| Monochromator on | 150 meV |
