Advantages of Field Emission Scanning Electron Microscope (FESEM)
The Scanning Electron Microscope (SEM) is an important tool for observing micro-scale morphology and is widely used in fields such as materials science, biology, and environmental science. With the continuous development of technology, the Field Emission Scanning Electron Microscope (FESEM) has emerged. Compared to traditional SEM, FESEM offers advantages such as higher resolution, greater depth of field, and stronger signal stability. This article will provide a detailed introduction to the principles, characteristics, and advantages of FESEM compared to SEM. Principles of Field Emission Scanning Electron Microscope (FESEM): 1. Electron Source: FESEM uses a field emission electron source instead of the concurrent electron source used in SEM. The field emission electron source has higher…