CEMAS houses six TEM/STEM microscopes. There are two aberration-corrected TEM/STEM systems - a Themis Z optimized for sub-Angstrom spatial resolution imaging and analysis, and a Titan 60-300 optimized for the investigation of soft and bio-materials with both high-resolution imaging and the ultimate in chemical analysis capabilities. There are two cryo microscopes. The Krios cryoTEM has direct electron detectors, spectrum imaging and tomography while the Glacios includes microED capabilities. CEMAS also has a Tecnai F20 analytical FEG TEM/STEM optimized for EDX and EELS, and a Tecnai 30 300kV TEM/STEM optimized for crystallographic imaging.

TEM Instruments at CEMAS

Themis Microscope
Thermo Scientific Themis Z S/TEM
The S-CORR probe corrected Themis-Z™ is equipped with a high coherence, high brightness, field emission electron gun (X-FEG), and an electron gun monochromator to provide useable probe current with an energy resolution of 0.10 eV.
Titan Microscope
Titan 60-300 TEM, formerly produced by FEI
The image-corrected Titan3™ G2 60-300 S/TEM provides superior performance, stability, and flexibility when utilizing the Cs image-corrector and electron monochromator technology for atomic resolution imaging and spectroscopy.
tecnai microscope
Tecnai F20 TEM, formerly produced by FEI
The Tecnai F20 microscope is a field emission 200kV S/TEM with an X-TWIN objective lens and high brightness field emission electron gun (FEG) optimized for analytical work.
tecnai microscope
Tecnai G2-30 TEM, formerly produced by FEI
The Tecnai 30 G2 TWIN is a 300 kV LaB6 TEM The wide-gap Twin lens pole-piece allows large tilt angles of the specimen making it optimal for diffraction analysis and imaging.
Krios microscope
Thermo Scientific Krios G3i Cryo-TEM
In the spring of 2019, CEMAS installed the Thermo Scientific Krios G3i cryoEM which has a 300 kV x-FEG source and can be configured for single particle analysis (SPA), tomography, and other applications.
glacios instrument
Thermo Scientific Glacios Cryo-TEM
In late 2018, CEMAS installed the Thermo Glacios cryoEM which has a 200 kV x-FEG source and can be configured for single particle analysis (SPA), tomography, and other applications.

TEM Instrument Manager

Portrait of Williams
Robert E. A. Williams, PhD

TEM Techniques

  • Energy-dispersive X-ray Spectroscopy (EDX) (EDS)
  • Electron energy loss spectroscopy (EELS)
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