Skip to department navigation
Skip to content
Skip to global navigation
amcl » amcl.mst.edu » electron » Tecnai F20 STEM (TEM) » Capabilities
Tecnai F20 STEM: Capabilities

FEI Tecnai F20 is a 200kV field emission gun (FEG) high resolution TEM/STEM which was installed in 2010. The microscope has a SuperTwin objective lens with a Cs of 1.2 mm. With its 200 kV acceleration voltage and its Schottky field emission source, this instrument provides outstanding stability, ease-of-use and high-resolution performance in TEM/STEM imaging and micro-analysis.

 

The scope is equipped with an Oxford ultra-thin window EDX detector, a Gatan ORIUS wide-angle CCD, a Gatan ultra-scan CCD and annular bright field/dark field detectors for STEM imaging.

 

  • A Schottky Field emitter (FEG) giving high brightness, low energy spread and very small probe sizes
  • Operation voltage 80, 120 and 200KV
  • Point resolution: 0.24 nm
  • Information limit: 0.14 nm
  • Energy resolution in EDX: 134eV
  • Magnification range: 21x - 1050 kx in TEM mode; Up to 5000 kx in STEM mode
  • Magnification reproducible within ± 1.5%
  • Camera Length range: 30 – 4500 mm in TEM-diffraction mode
  • Coma-free alignment for high-resolution objective-lens centering
  • Rotation-free magnification and diffraction series
  • Fully computer-controlled, eucentric side-entry, high stability CompuStage
  • Double tilt low background analytical specimen holder (α +/- 38º, β +/- 28 º)
  • Excellent EDX in-hole performance, low system background in EDX, small probes and embedded EDX, spectrum profiling and imaging
  • Improved EDS analytical capabilities through specimen drift correction control

Direct questions to Jessica TerBush


  generate print-friendly
DESERT EXPLORER

Michael Bouchard studies bizarre dome-like structures in Egypt's Afar Desert.

READ MORE >
GOING THE DISTANCE

Marathon runner Devin Dixon sped through three degrees in just over six years.

READ MORE >
MINING ON THE MOON

Dr. Leslie Gertsch takes a look at humanity's future in space.

READ MORE >
D-DAY RE-EXAMINED

John McManus' latest book looks at the Big Red One at Omaha Beach.

READ MORE >
LIFE ON MARS

Melanie Mormile studies bacteria here on Earth that could survive on Mars.

READ MORE >
SPELUNKING FOR A CAUSE

Michael Bradford helps protect bats and cave formations in Missouri.

READ MORE >
SLIMY STUFF

Paul Nam suggests the potential solution to several global problems is green slime (algae).

READ MORE >
DANCING WITH CODE

Marquia Lewis studies computer science and is a member of the Gold Miners dance squad.

READ MORE >
CRAFT-Y MAGAZINE EDITOR

Casey Burton works to improve cancer screenings and publishes a gamer magazine.

READ MORE >
A GOALIE'S PERSPECTIVE

Carrie Levy enjoys the mental challenge of being a Lady Miner goalkeeper.

READ MORE >
A PHILOSOPHY OF ADVOCACY

Kate Burns is proof that students in every major can find success.

READ MORE >
PHYTOFORENSICS

Joel Burken's research team use trees to detect soil and groundwater contamination.

READ MORE >
ROCKET SCIENTIST

Anan Takroori shares his love of planes, rockets and satellites with campers.

READ MORE >
'DOWN-TO-EARTH' SCHOLAR

Krista Rybacki studies soil samples from an area near a lead recycling smelter.

READ MORE >
MINERS ABROAD

Delancey Rougely studied the effects of war in France and blogged about it.

READ MORE >