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Phenom Pharos G2
Thermo Scientific

The Thermo Scientific Phenom Pharos is a desktop SEM (Scanning Elecron Microscope) with an Field Emission (FEG) source for crisp, high-brightness images. It’s much easier to use and install than a typical FEG-SEM, making the benefits of an FEG source accessible to everyone.


Fast SEM

Only 30 seconds from sample loading to imaging.

Desktop system

Robust and compact.

1-20 kV voltage range

With low energy imaging for soft, sensitive and insulating materials.

High resolution

2.0 nm images.

Elemental analysis

Optional EDS


Fast and Easy to Use

The Phenom Pharos Desktop SEM is designed to make FEG-SEM accessible to everyone, delivering crisp, high-brightness images.

The installation process is straightforward, requiring just a solid table and a regular power supply. The UPS (Uninterrupted Power Supply) is integrated, protecting the system from any power failures. Initialisation starts automatically when the power’s switched on.

After loading a sample, an optical image is available immediately for navgation. When you switch to SEM mode, an image appears in 30 seconds. The new interface on the G2 model displays a full-screen, highly detailed 24″ image.

Training takes less than an hour. Master students, visitors or researchers not trained on high-end FEG SEMs can easily acquire high quality images with the Phenom Pharos.

Sensitive Materials

With a voltage range down to 1 kV you can image soft, insulating and beam-sensitive samples, such as polymers. There’s no need to apply any special coatings or prepare the samples.

2.0 nm Resolution

The Phenom Pharos G2 also offers a resolution of 2.0 nm at 20 kV. This reveals features that may be missed by other tabletop or tungsten SEMs, such the shape of nanoparticles or imperfections in coatings.

Silver Nanostructure

Silver Nanostructure


  • EDS (Energy Dispersive Spectroscopy (EDS) – Elemental information for compositional context.
  • 3D EDS Tomography – 3D characterisation with compositional data for full chemical and structural information.
  • Atomic-scale EDS – Differentiate the elemental identity of individual atoms and examine their organisation.
  • High Temperature Imaging – Study materials in real-world conditions as they melt, recrystallise, deform or react.
  • In-situ – Watch micro-structural changes in real time during heating, cooling, and wetting to study dynamic processes eg recrystallisation, grain growth or phase transformation.
  • Multi-scale analysis – Correlate various imaging modalities for larger context as well as high resolution studies.

Size and Weight

  • Imaging module
    Size: 360 x 580 x 590 mm
    Weight: 75 kg
  • Diaphragm vacuum pump
    Size: 145 x 220 x 213 mm
    Weight: 4.5 kg
  • Power supply
    Size: 230 x 255 x 75 mm
    Weight: 4.3 kg
  • Monitor
    Size: 531.5 x 250 x 515.4 mm
    Weight: 6.7 kg


Media Gallery

How to Choose a SEM

A recorded webinar from Thermo Scientific about how to match the features and specification of a SEM to the requirements of your application.

  • How different samples and applications require different resolution performance.
  • What performance you can expect from a tungsten / FEG / in-lens FEG / UC FEG.
  • Dealing with different types of samples: insulators, nanomaterials, sensitive materials, etc.
  • Characterising samples in their natural state without the need for sample preparation.
  • What type of information the SEM can provide.
  • Software features to boost productivity and ease-of-use.
Watch the recorded webinar


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