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What is the principle of SEM?

Jun 17 , 2024

Scanning Electron Microscopy (SEM) is based on the principle of using a focused beam of high-energy electrons to probe the surface of a sample and produce a high-resolution detailed image. Electron Source: SEM works by using an electron source, typically a heated tungsten filament or a field emission gun, to produce a beam of electrons. Electron Beam Generation: The electron source e...

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Continuous Wave and Pulse EPR Spectroscopy

Jun 26 , 2024

EPR (Electron Paramagnetic Resonance) Spectroscopy, also known as Electron Spin Resonance (ESR) Spectroscopy, is a technique used to study the electronic structure of paramagnetic species. There are two main types of EPR spectroscopy: Continuous Wave (CW) EPR spectroscopy and Pulsed EPR spectroscopy. Continuous wave (CW) EPR Spectroscopy: In continuous wave EPR spectroscopy, a microw...

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Why is EPR more sensitive than NMR?

Jul 08 , 2024

The sensitivity of a spectroscopic technique refers to its ability to detect and analyze signals from a sample. In the case of electron paramagnetic resonance (EPR or ESR) and nuclear magnetic resonance (NMR), EPR is generally considered to be more sensitive than NMR for several reasons: 1. Detection principle EPR detects signals from unpaired electrons, while NMR detects signals from the n...

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SEM Microscopes Companies in the Middle East

Jul 19 , 2024

The scanning electron microscope (SEM) is an advanced scientific instrument to image and analyze high-resolution samples. Several countries in the Middle East have well-established scientific research institutes and universities, with Saudi Arabia, the United Arab Emirates (UAE), Turkey, Egypt, and Iraq investing heavily in scientific research and development, including scanning electron microscop...

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SEM vs TEM: Unveiling the Microscopic World

Jul 22 , 2024

In microscopic imaging, two dominant techniques have revolutionized our understanding of the complexity of the nanoworld: scanning electron microscopy (SEM) and transmission electron microscopy (TEM). These powerful tools have opened up new avenues for a variety of scientific disciplines, allowing researchers to delve into the composition, structure, and behavior of a wide range of materials. We c...

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What is SEM EDS EDX?

Aug 15 , 2024

Scanning Electron Microscopy (SEM) is a microscopy technique that uses a focused electron beam to create detailed images of the surface of a sample. The electron beam scans the sample in a raster pattern, and the resulting signals generated by interactions between the electron beam and the sample's surface are detected and used to form an image. SEM provides high-resolution three-dimensional surfa...

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Step-by-Step Guide to Prepare EPR Samples

Aug 19 , 2024

Electron paramagnetic resonance (EPR), or electron spin resonance (ESR), is a powerful spectroscopic technique used to study the properties of materials with unpaired electrons. To perform EPR experiments, it is crucial to prepare high-quality EPR samples. In this blog post, we will describe step-by-step how to prepare EPR samples. >> Materials: - Sample matrix: This can be a solid sa...

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Exploring Types of Scanning Electron Microscopes

Aug 26 , 2024

Microscopy has revolutionized our understanding of the microscopic world, enabling scientists to reveal complex structures and study materials at the nanoscale. Among the various powerful microscopes, the scanning electron microscope (SEM) is an indispensable tool for imaging surfaces with extraordinary detail and resolution. In this blog post, we will look in-depth at different types of scanning ...

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