Themis 60-300 kV Transmission Electron Microscope (TEM)
Atomic-Scale Imaging and Nanoscale Compositional Analysis for Materials
About
Location: Wilsdorf Hall B011 and B013
The Themis system from Thermo Fisher Scientific allows for imaging of materials with atomic resolution in both the Transmission Electron Microscopy (TEM) and the probe-corrected Scanning TEM (STEM) modes. Compositional analyses and mapping are available using Energy Dispersive X-Ray Spectroscopy (EDS) and Electron Energy-Loss Spectroscopy (EELS).
TEM Technique Summary:
- Atomic resolution imaging of crystal lattices in TEM and STEM modes
- Imaging of defects, precipitates and interfaces using bright- and dark-field techniques
- Elemental Composition for Z>2
- Elemental Sensitivity: < 1 wt.% with spatial resolution in the nm range
- Electron diffraction for structural analysis of areas with diameters > 150 nm
- In-situ of imaging of samples during cooling and heating experiments
- In-situ imaging of liquids and during electrochemical experiments
- Samples can be powders or materials thinned to less than 1 micron in thickness
- Maximum sample diameter: 3 mm, maximum height: 0.25 mm
TEM Features:
- 80-300 kV S-Twin platform
- STEM and TEM system with Field Emission Gun and Gatan 966 Energy-Loss Spectrometer
- Monochromator: Energy resolution<200 mV at 300 kV, energy resolution<30 mV at 60 kV
- Resolution: probe-corrected STEM: 0.07 nm; TEM: 0.19 nm
- Super X EDS system (4 silicon drift detectors)
- Low-background Double-Tilt Specimen Holder, alpha tilt angles up to 40°
- Cold Stage (liquid nitrogen) and Heating Stage (up to 850°C) Double-Tilt Specimen Holders
- Rotation holder and q-slit for momentum resolved EELS
- Poseidon liquid cell holder for in-situ electrochemical experiments
- Ceta camera: 4096x4096 pixels
- HAADF, BF, DF, and Differential Phase Contrast detectors for STEM
Rates
UVA RATES:
Themis Z 3.1 STEM Instrument Usage: $95/hr
Themis Z 3.1 STEM Operator Costs: $60/hr
TEM Specialty Holder Use: $10/day
EDUCATIONAL, GOVERNMENT & NON-PROFIT INSTITUTIONS RATES:
Themis Z 3.1 STEM Instrument Usage: $100/hr
Themis Z 3.1 STEM Operator Costs: $70/hr
TEM Specialty Holder Use: $20/day
INDUSTRIAL PARTNER RATES:
Themis Z 3.1 STEM Instrument Usage: $225/hr
Themis Z 3.1 STEM Operator Costs: $125/hr
TEM Specialty Holder Use: $60/day
Contact Us
Helge Heinrich
Senior Research Scientist , TEM, FIB, XPS, XRF
Richard White
Facility Manager, SEM, TEM, FIB, Optical, Metallography