Search Thermo Fisher Scientific
The innovative Thermo Scientific Iliad Ultra (S)TEM revolutionizes TEM by enabling acquisition of different signals at different voltages in a single microscopy session through live HT switching. Traditionally, optimizing imaging for energy-dispersive X-ray spectroscopy and electron energy loss spectroscopy required separate sessions due to the need for different voltages.
The fully integrated Iliad Ultra (S)TEM, featuring the cutting-edge Iliad EELS Spectrometer and Energy Filter, dedicated Zebra camera, and Ultra-X Detector, stands out with the highest solid angle. It also features the NanoPulser, an innovative electrostatic beam blanker, and live HT switching that revolutionizes TEM. Seamless data acquisition in Thermo Scientific Velox Software and customized workflows enabled by Thermo Scientific AutoScript Software simplify operation and enable a broad range of applications.
Live HT switch in the range of operating voltages from 30 kV to 300 kV is crucial for optimizing experimental conditions. It offers flexibility, sample sensitivity control via the targeted experiment setting, resolution optimization, and experimental versatility, helping you achieve the best possible imaging results and explore a variety of scientific avenues.
TEMs operate using a broad range of energies to characterize every type of material. The ability to switch between a wide range of operating voltages from 30 kV to 300 kV provides the flexibility to select the optimal voltage for your specific experimental requirements. Different samples and imaging techniques may benefit from different voltage settings, allowing for enhanced experimental capabilities and versatility.
Electron microscopy involves exposing samples to high-energy electron beams. The voltage at which the TEM operates directly affects the energy of the electrons and their interaction with the sample. Lower voltages, such as 30 kV, are often used for delicate samples or those that are sensitive to knock-on damage to minimize damage caused by excessive electron energy. On the other hand, higher voltages, such as 300 kV, can provide better penetration through thicker samples, enabling imaging of denser materials or deeper layers.
The choice of operating voltage in a TEM can significantly impact the quality of the data obtained. Lower voltages can enhance contrast, particularly for samples suffering from knock-on damage, by reducing beam damage and improving image quality. Higher voltages, on the other hand, can improve resolution, allowing for detailed imaging of fine structures and high-resolution analysis.
Switching between different operating voltages extends the range of experiments and applications that can be carried out using the TEM. You can tailor your experimental conditions to suit specific sample types, imaging modes, or analytical techniques. This versatility enables a broader range of scientific investigations, from materials science to nanotechnology.
The new Iliad EELS Spectrometer and Energy Filter with advanced optics and high stability offers unique integration with TEM optics to improve the EELS data collection experience.
For EELS experiments, a broad range of electron energies up to several thousand eV wide must be simultaneously transferred through the microscope and through the spectrometer, from specimen to detector, without introducing chromatic blur or chromatic distortions. To achieve this with other systems, the operator must continuously adjust both microscope and spectrometer settings to maintain the correct experimental conditions. The close integration between microscope electron optics and the spectrometer in the Iliad Ultra (S)TEM matches chromatic defocus with the focus of the spectrum, helping to ensure accurate transfer for the entire range of experimental conditions.
Atomically resolved EELS elemental map of LaMnO3/LaFeO3 interface.
Atomically resolved EELS elemental map of TbScO3 with Tb shown in green and Sc shown in red.
An electrostatic beam blanker is used in electron microscopy to optimize the electron dose. It selectively blocks or blanks the beam, effectively turning it on and off over the specimen at a high frequency. TEMs typically use magnetic deflectors, which only have a response time in milliseconds and are not as reproducible as electrostatic deflectors. The Nanopulser enables precise temporal control over the electron dose delivered to the sample, giving it a wide range of applications ranging from dose-efficient imaging to time-resolved experiments.
Cutting-edge Thermo Scientific Velox Software for transmission electron microscopy offers comprehensive experimental control. It facilitates access to scanning transmission electron microscope (STEM and TEM) optics and detectors, enhancing reproducibility, yield, and support for quantitative STEM and TEM material analysis.
Velox Software stands out with its integrated ergonomic user interface and ease of use, providing ultimate quality in imaging and compositional mapping. The integrated SmartCam brings efficient setup of experiments. Additionally, it has an interactive detector layout interface for optimal experimental control and documentation on multidetector tools. Velox Software supports high-contrast atomic imaging of light and heavy elements and enables flexible STEM and TEM movie recording for dynamic studies.
Velox Software is equipped with unique packages for electron energy loss spectroscopy and energy-dispersive X-ray spectroscopy on Thermo Scientific EDX detectors. This robust mapping engine integrates multiple techniques optimized for transmission electron microscopy, ensuring the acquisition of best- in-class spectrum images with high yield. The software also provides live feedback during acquisition and fast post-processing of EELS and EDX data.
Overall, Velox Software is a powerful tool that offers excellent control, quality, and versatility in transmission electron microscopy, making it an essential part of the scientific research ecosystem.
For Research Use Only. Not for use in diagnostic procedures.