What is Ager's electron spectroscopy?

Air electron spectroscopy (AES) is often used to determine the chemical composition of a thin microscopic layer of the surface. The particles called electrons are usually focused on the material that triggers the effect of the worm in which the electron is removed from the atomic shell, occupies the amount of higher levels and another electron is issued. Testing, which is performed in an ultra -high vacuum, is usually performed using an electron pistol, analyzer, detector and data recorder. Information is usually analyzed graphically; The nature of peaks usually helps to identify what compounds are present in the sample. The type of material test determines which is used; For example, oxides can degrade if they are exposed to high levels of electrons. Substances can be identified because the energy of the Ager electron is usually unique for the element. In Ager's electron spectroscopy, particles that escape, are not generally as energetic as others. Generally must be very close to the surface in order to escape, and all gases present during AE can prevent particles from reaching the detector.

The electron gun used in Ager's electron spectroscopy usually consists of a source for particles and lenses that will focus a beam. The lens may be either electrostatic or electromagnetic; Which one is used depends on the required resolution. The electron energy analyzer, which is part of the technique of Ager's electron spectroscopy, can sort the emitted particles with their energy level. The analyzer can be designed as a cylindrical mirror or two hemispheric concentric shells.

One or more -semate detectors are often used for electron spectroscopy of Augera. The data is then analyzed by sets of peaks on the graph. Scanning usually takes a few minutes for a high -resolution LE to take up to 25 minutes. Reconnaissance scan usually identifies what elements are pŘítomny, while further scanning can find out how concentrated atoms are concentrated. If the beam is scanned across the sample, a map of the measured surface can be created.

Air electron spectroscopy Science is often used in many physical and chemical applications. In addition to identifying elements on the surfaces, it can be used to detect oxidation and corrosion. The temperature response and related fatigue can be analyzed using AES. The technique can also be used to check integrated circuits for contaminants, but by limiting the process, the process is often damaged by the surface of the test material.