VPSEM image of hydrated leaf

(VPSEM image of hydrated leaf)


What Is It?

Variable Pressure Scanning Electron Microscopy is a technique used to produce high-resolution images with a high depth of field. VPSEM differs from traditional SEM in that the instrument chamber is operated at higher pressures (~10 Pa to 3,000 Pa) which allows for imaging and analysis of insulating samples without the need to apply a conductive coating.

Why Should I Use It?

This is convenient for when it is undesirable to coat a sample or the sample is too large for the coating systems.

What Do I Get Out of It?

With VPSEM, we can examine a sample’s topography, structure, and its elemental composition under magnifications of ~10X to ~20,000X. Multiple electron and x-ray detectors can be employed to expose even more information about the characteristic of a sample.

Applications Include:


  • Biological samples
  • Wet (hydrated) biomaterials and products
  • Food products
  • Plant products
  • Polymers
  • Textiles
  • Drugs / Medications
  • Electronics and electronics packaging
  • Paints and inks


Download Full Capabilities Sheet