Field Emission Transmission Electron Microscope

TALOS F200X is a new field emission transmission electron microscope with real multi-functions and multi-user environments. It flexibly integrates various transmission electron microscopy techniques (including TEM, SDD, STEM, etc.) to obtain stronger analysis functions. Adopting Schotty field emission electron gun which has high emission current, the machine can capture images with high brightness and good stability. It can be applied in the observation and analysis of material microstructure, morphology image analysis, electron diffraction image analysis, HRTEM high resolution image analysis and STEM analysis.

Applications

• Observing material's patterns and organizational structures

• Taking visual pictures

• Providing relevant information such as crystal structures,micro-area chemical compositions of sample and element distribution (line scanning, surface scanning) of selected areas

Strengths

High resolution, high magnification, and high picture pixel

Specifications

Key features and specifications of the microscope:

• Maximum accelerating voltage of 200 kV

• Constant power A-TWIN objective lens

• X-FEG field emission source; brightness 1.8×109 A/cm² srad (at 200 kV)

• Total beam current >50 nA

• Probe current, 0.4 nA in 0.31 nm probe (at 200 kV), 1.5 nA at 1.0 nm probe (at 200 kV)

• Super X-EDS system (energy dispersive spectroscopy); 4 Silicon drift detectors (SDD) symmetric design, windowless, shutter protected

• Energy resolution £ 136 eV for Mn-Ka and 10 kcps (kilo counts per second output)

• Fast EDS mapping; pixel dwell time down to 10 ms (up to 105 spectra/sec)

• VeloxTM S/TEM for improved imaging with a drift corrected frame integration (DFCI) engine

• STEM high angle annular dark field (HAADF) resolution (nm) 0.16

• EDX solid angle (srad) 0.9

• TEM information limit (nm) 0.12

• TEM point resolution (nm) 0.25

• TEM spherical aberration 1.3mm, STEM spherical aberration 1.0 mm

• STEM magnification range 150× - 230 M×

• TEM magnification range 25× - 1.5 M×

• Camera length (mm) 12-5100

• Maximum diffraction angle ±12°

• Maximum tilt angle with double tilt holder ±30°

• Maximum goniometer (stage) tilt angle ±90°

• SmartCam digital search and view camera

• Fully integrated fast detector, Ceta 16 Mpixel CMOS camera with a large field of view and high-read out speed (2 frames per second (fps) at 4K and 18 fps at 1K)

• Piezo stage

• Full remote operation with automatic aperture system in combination with the Ceta camera