Environmental scanning electron microscope (ESEM) for the study of materials in their natural state.

The Thermo Scientific Quattro Environmental Scanning Electron Microscope (ESEM) is a highly versatile platform for in situ dynamic experiments, offering exceptional imaging and analytical performance. Its unique environmental mode (ESEM) allows samples to be studied in their native state, making it ideal for diverse academic, industrial, and government labs. The Quattro ESEM's ease of use and flexibility cater to multiple users with varying experience levels and disciplines. A field emission gun (FEG) ensures excellent resolution, and three vacuum modes (high vacuum, low vacuum, and ESEM) accommodate a wide range of samples, including those outgassing or otherwise vacuum-incompatible.

Designed to simplify materials science research, the Apreo ChemiSEM makes advanced imaging and analysis accessible to all users. Smart Frame Integration (SFI) and enhanced autofocus/autostigmation functions ensure effortless acquisition of high-resolution images, EDS, and EBSD data.

Its ESEM capability enables the study of materials under various conditions, such as wet/humid, hot, or reactive environments, supporting the development of new materials and products. Cooling experiments on wet materials are possible with the Peltier cooling stage or WetSTEM Technology, while heating experiments can be performed in high vacuum (with a high-vacuum heating stage), low vacuum/ESEM mode (with two ESEM heating stages reaching 1,000°C and 1,400°C), or on a localized area (with the µHeater Holder). The large chamber accommodates a wide range of accessories, including EDS (with ports for dual 180-degree attachment), EBSD (coplanar with EDS), and WDS. Furthermore, it features ChemiSEM Technology, a live elemental imaging capability.

The large chamber accommodates a wide range of accessories, including EDS (with ports for dual 180-degree attachment), EBSD (coplanar with EDS), and WDS. Furthermore, it features ChemiSEM Technology, a live elemental imaging capability.

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Metals and alloys (metallic filter).

Additive manufacturing powder.

Soft materials (polymeric fibers).

Biological samples (mold spores).

Soft materials (polymeric fibers).

Chemicals (zinc oxide nanoparticles assembled into platelets).

In situ study of materials in their natural state: unique high-resolution FEG-SEM with environmental mode (ESEM). In situ analysis at temperatures ranging from -165°C to 1,400°C with a range of cryo, Peltier, and heating stages.

Observe all information from all samples with simultaneous SE and BSE imaging in every mode of operation. Several additional detectors, such as the STEM3+ detector and the retractable RGB cathodoluminescence (CL) detector are available to accommodate every user’s need and provide a complete set of information from a wide range of materials.

Material contrast from a mix of different metals.

Bright field (BF) STEM3+ image of a biological section of a planarian.

CL image of diamonds.

Excellent analytical capabilities with a flexible chamber that allows multiple EDS, EBSD, or WDS detectors. Elemental information at your fingertips with ChemiSEM Technology, which provides live, quantitative, elemental mapping for unprecedented time to result and ease of use. Excellent analysis of non-conductive samples: accurate EDS and EBSD are enabled in low vacuum with the Quattro ESEM's through-the-lens pumping.

ChemiSEM image of dental filling material, showing a mixture of Hg, Cu, Sn and Ag.

EBSD on ceramic materials in low vacuum.

Easy to use, intuitive software with User Guidance. The unique Undo function permits efficient exploration of imaging conditions and allows you to work faster with fewer mouse clicks.

Advanced automation is available through either Thermo Scientific AutoScript 4 or Maps Software, tailored to specific application requirements. AutoScript 4 provides control of the Quattro ESEM via a Python-based API, optimizing in situ experiments and monitoring dynamic parameters like temperature, stage position, or pressure. Maps Software automates large-area acquisition on multiple samples with up to four simultaneous signals, boosting productivity and providing a multi-scale, multi-layered visualization environment for correlating 2D and 3D data from any source.

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