Field emission gun scanning electron microscope
The Thermo Scientific Phenom Pharos G2 FEG-SEM brings field emission SEM to your tabletop. The Phenom Pharos G2 FEG-SEM will outperform many floor-standing SEMs in terms of image quality, while offering a vastly better user experience. For academic and industrial laboratories that so far did not consider SEM a realistic option, the Phenom Pharos G2 FEG-SEM makes FEG performance accessible thanks to its attractive form factor and short training required. Blazing fast sample loading means fast sample exchange, which means higher productivity. Unlike other SEMs, which end up being fully booked, the Phenom Pharos G2 FEG-SEM performs imaging and analysis jobs so quickly that it serves well as a walk-up tool.
The new Phenom Pharos G2 FEG-SEM expands its acceleration voltage range down to 1 kV, to better accommodate insulating and beam-sensitive samples, and up to 20 kV, with a resolution of 2.0 nm that reveals the finest details.
Introducing the Phenom Pharos G2 Desktop FEG-SEM: Intuitive evidence for your research
Unique field emission source
Unique among desktop SEMs, the Phenom Pharos G2 FEG-SEM offers a field emission source, which guarantees high brightness, crisp images, and stable beam current.
Excellent resolving power
The Phenom Pharos G2 FEG-SEM offers a resolution of 2.0 nm at 20 kV. Such performance shows the shape of nanoparticles, imperfections in coatings, or other features that would be missed by tungsten SEMs or other tabletop SEMs.
Gentle imaging
With a voltage range down to 1 kV, the Phenom Pharos G2 FEG-SEM enables imaging of beam-sensitive samples, such as polymers, as well as insulating samples, without the requirement to apply a coating. As a result, nanoscale surface features are not obscured.
Higher productivity
While FEG SEMs have a reputation for being difficult to accommodate and difficult to operate, the Phenom Pharos G2 FEG-SEM literally requires only a desk, and less than one hour of training. Master students, visitors, or other researchers typically not trained to work on high-end FEG SEMs can easily use the Phenom Pharos G2 FEG-SEM to create eye-catching images.
A world of information
On the Phenom Pharos G2 FEG-SEM, morphological information is acquired together with compositional information, thanks to SE, BSE, and EDS detectors built into the system. A range of sample holders is available for temperature-controlled or electrical experiments.

ChemiSEM Technology
Thermo Scientific ChemiSEM Technology revolutionizes and simplifies EDS analysis by fully integrating SEM and EDS functions into a single, cohesive user interface. Based on live quantification and building on decades of expertise in EDS analysis, the technology provides elemental information quickly and easily, guaranteeing reliable results in less time. ChemiSEM Technology now comes with a powerful new feature: ChemiPhase. ChemiPhase identifies unique phases with a big data approach, finding minor and trace elements while eliminating user bias and reducing possible mistakes.
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Webinar: Scanning electron microscopy: selecting the right technology for your needs
This on-demand webinar has been designed to help you decide which SEM best meets your unique needs. We present an overview of Thermo Fisher Scientific SEM technology for multi-user research labs and focus on how these wide-ranging solutions deliver performance, versatility, in situ dynamics and faster time to results. Watch this webinar if you are interested in:
- How the needs for different microanalysis modalities are met (EDX, EBSD, WDS, CL, etc.).
- How samples are characterized in their natural state without the need for sample preparation.
- How new advanced automation allows researchers to save time and increase productivity.
Webinar: Scanning electron microscopy: selecting the right technology for your needs
This on-demand webinar has been designed to help you decide which SEM best meets your unique needs. We present an overview of Thermo Fisher Scientific SEM technology for multi-user research labs and focus on how these wide-ranging solutions deliver performance, versatility, in situ dynamics and faster time to results. Watch this webinar if you are interested in:
- How the needs for different microanalysis modalities are met (EDX, EBSD, WDS, CL, etc.).
- How samples are characterized in their natural state without the need for sample preparation.
- How new advanced automation allows researchers to save time and increase productivity.