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Themis Z G3 Cs-Corrected S/TEM

The Thermo Fisher Scientific (TFS) Themis Z G3 aberration-corrected scanning transmission electron microscope (STEM) achieves < 0.6 Å resolution (sample dependent) and is equipped with an optimized monochromator for < 30 meV energy resolution in EELS at 60 kV, a Gatan Continuum electron energy loss spectrometer and image filter, a TFS Super-X energy dispersive x-ray spectrometer system, a segmented STEM detector for fast DPC and iDPC imaging, a Lorentz lens, a 16 megapixel Ceta II camera and a 4D STEM EMPAD camera. Single tilt, double tilt, and tomography holders are available. The instrument can be operated at 60, 200, and 300 kV for the flexibility to accommodate a range electron beam sensitive materials.  

  • 60, 200 and 300 kV operating range 
  • Monochromator with < 30 meV energy resolution in EELS (vibrational spectroscopy and automated alignment software)
  • Piezoelectric stage for compensating drift and fine sample movements
  • Sub-1 Å imaging at 60 kV (particularly useful for 2D materials)
  • Gatan Continuum spectrometer and imaging filter (atomic resolution chemical mapping with monochromated EELS) 
  • Super X-4 quadrant EDS detector with separable signals from each detector (atomic resolution elemental mapping with energy-dispersive X-ray spectroscopy (EDS))
  • Imaging and EDS tomography to reconstruct structure and chemistry in 3D
  • Thermo Fisher Scientific EMPAD detector
  • Fast 4k x 4k CMOS camera 
  • Segmented diode detector for fast mapping of electromagnetic fields (differential phase contrast) and light elements (integrated differential phase contrast)
  • Magnetic domains imaging via Lorentz lens settings 

    Accessory in-situ holders
  • Mel-Build Atmos Double Tilt LN2 Vacuum/Inert Gas Transfer Holder
  • DENS solutions Lightning Heating and Biasing Double Tilt Holder
  • Hummingbird Liquid Flow Holder with electrochemistry
  • Atomic-resolution imaging and spectroscopy 
  • Correlating morphology, structure, and chemistry
  • Magnetic nanostructure characterization
  • Tomography for imaging and 3D elemental Distributions
  • Elemental and chemical analyses of small analytical volumes

Aubrey Penn, PhD           
Building 12 (basement)            
60 Vassar Street            
Cambridge, MA                   

Yong Zhang
60 Vassar Street (rear)
Cambridge, MA                         






Reservation Rules

Prior electron microscopy imaging experience is required to become an independent user


MIT.nano (basement level)
60 Vassar Street (rear)
Cambridge, MA