Fees
Fees/rates for use of equipment in the Microscopy Suite determined through analysis by Government Costing, University of Illinois. In effect starting August 1, 2021; subject to change.
Scanning Transmission Electron Microscope (S)TEM

Thermo Fisher FEI Tecnai G2 F20 S-TWIN STEM operates at up to 200 kV with a Schottky field-emission electron gun. Digital image acquisition using an AMT 4k x 4k CMOS camera or a Gatan Orius widefield retractable side-mount camera, as well as HAADF-STEM (High-angle annular dark-field scanning transmission electron microscopy). Various holders.
Features:
- Electron Source: Schottky FEG
- Detectors: Dark- (HAADF) and Brightfield STEM
- Camera: AMT BioSprint 4k x 4k (16 Megapixel) ActiveVu CMOS camera
- Optional camera: Gatan Orius widefield retractable side-mount 2k x 2k (7.4 Megapixel) camera
- Holders: Single-tilt, Double-tilt, High-angle, and Custom STM tip
- Vacuum System: ODP, IGPx3, and PVP
For additional information about this piece of equipment, see the Calendars, Contacts, and Fees pages.
Primary Contacts | |
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Secondary Contacts | |
Manufacturer | Thermo Fisher FEI |
Equipment Model | Tecnai G2 F20 S-TWIN |
Location | B0606B |
Phone Numbers | Cate: (217) 333-5493, Scott: (217) 265-5071, Room B606C: (217) 244-7973 |
Notes:
* The fee for use is added to our purchase cost for the specific precious metal (gold, gold-palladium, or platinum) expended during coating. Gold and gold-palladium are charged at $0.30/nm, and platinum is charged at $0.45/nm. The added fee is easy to determine for the dual-metal evaporator, for which total thicknesses are reported in nm. For the sputter coaters, at 65 mTorr and 40 mA, gold coats at 3 nm/10 seconds, gold-palladium coats at 1 nm/10 seconds, and platinum coats at 1 nm/10 seconds. So a standard 70-second coat of gold will cost an additional (21 x 0.30) $6.30, a 70-second coat of gold-palladium will cost (7 x 0.30) $2.10, and a 70-second coat of platinum will cost (7 x 0.45) $3.15.
Microscopy Suite
405 North Mathews Avenue, Urbana, IL
61801 USA
(217) 300-0566