Zeiss TEM Libra 120

Image "Electron Microscopy:Libra120_upload.jpg"Main Applications: Transmission electron microscopy, 3D TEM tomography, elemental analyses
Person in Charge: Katherina Psathaki
Location: Building 37, Room E35

Brief Description: The Zeiss Libra 120 120 kV transmission electron microscope combines a Koehler illumination system with a Zeiss in-column OMEGA-energy filtering system for improved image contrast of thick and even unstained ultrathin samples. High detector flexibility extends the Libra 120 to fully analytical TEM (EDS, EFTEM, ESI, EELS). The microscope is equipped with an integrated high precision 5-axes tilt goniometer stage with ±75° for 3D TEM tomography.

Technical Specifications

Electron Column: Acceleration voltage: 80 kV to 120 kV, LaB6 electron source.

Highly flexible advanced Koehler illumination system for true parallel-beam specimen illumination over the entire imaging and diffraction range which guarantees for superior image contrast. In-column OMEGA energy filter for excellent elemental analysis (EFTEM, ESI, EELS) and diffraction patterns and superior image quality and signal to noise ratio even under extreme low dose conditions. Truly symmetrical single field condenser objective lens for analytical applications, i.e. EDX measurements.

Resolution Point to Point 0.34 nm
Information Limit < 0.20 nm
Magnification TEM 8 - 630,000 x
Magnification EELS 20 - 315 x
Analysis: EELS, ESI, Image EELS, EDS.


  • Sample holder: Single tilt for two specimens, Gatan double specimen holder.
  • Goniometer: High precision 5-axes goniometer stage with ±75° a tilt.
  • WinTEM graphical user itnerface with Microsoft Windows XP

Image Acquisition

  • Bottom mounted TRS slow scan 2K CCD one axis camera for image acquisition