Zeiss CEM902

Type: CEM902
Persons in charge: Markus Drechsler,

Manufacturer: Carl Zeiss Microscopy GmbH

80kV EFTEM with Tungsten Cathode and In-Column Castaing Energyfilter

Resolution [nm] : 0,344 (line), 0,5 (point) at 80 kV
High Voltage [kV] 50; 80
Voltage Range for EELS [eV] 0 – 2000 (step size 0,5 eV)
Cathode Type : Thermal Tungsten Cathode
Focal Length of Objective Lens [mm] 2,6
cs [mm] 2,2
cc [mm] 1,7
Astigmatism [µm] <1
Smallest Focus Step size [nm] 15
Spectrometer: Castaing / Ottensmeyer
Isochromaticity: Energy Resolution (full intensity) ± 7,5 eV
Isochromaticity: Energy Resolution (reduced intensity) ± 1,5 eV
Spectral Energy Dispersion: 1,8 µm/eV (spectrum plane), 0,5 µm/eV (image plane)
Image Detection : - Photographic Plates (3,25 ” x 4”)
- Gatan CCD Camera (Orius) with GMS 2.3

Webmaster: Dr. Markus Drechsler