fei f20

  • Routinely operated at 200 kV and 80 kV.
  • STWIN objective lens, allowing for relatively large tilting angles
  • Main characteristics at 200 kV
    • Cs=1.2 mm (spherical aberration coefficient)
    • Point-to-point resolution of 0.24 nm
    • Information limit of 0.1 nm
  • EDAX™ energy dispersive spectrometer for chemical analysis (classical SiLi detector, collection angle 0.09 sterad)
  • Lorenz lens enabling for in situ studies of magnetic materials
  • OneView Gatan™ 16 Megapixels CMOS camera with in situ drift correction, 25 frames per second at full resolution and a dynamic range way beyond classical CCDs
  • Dedicated specimen holders:
    • Low background double tilt Gatan analytical holder (with Faraday cup)
    • Liquid nitrogen cooled single tilt Gatan analytical holder (also low background)
    • Heating single tilt holder, designed to reach 1300 degC