| Click here for a basic FEI Tecnai 20 instruction sheet.
The Philips/FEI Tecnai20 (FEI Co., Eindhoven, Netherlands), a 200 kV transmission electron microscope is the center's analytical TEM. Aside from normal viewing of specimens in brightfield, dark field or electron diffraction mode, the Tecnai20 has scanning transmission (STEM) capabilities for studying specimen-induced contrast. Stereocopic imaging for 3-dimensional viewing of specimens is obtained using the rotatable double tilt specimen holder and a Gatan cryotransfer system allows for imaging frozen hydrated samples. The STEM also has a heated stage. (Gatan Inc., 780 Commonwealth Dr., Warrendale, PA 15086)