In the FE-SEM, a second anode is ... these two anodes determines the final electron speed down the column. The field emission gun (FEG) requires a better gun vacuum than a tungsten emitter. This is ...

Much like the traditional scanning electron microscope ... of about 5,000 times! The FE-SEM is equipped with a special objective or focusing lens that projects the magnetic field below the lens. This ...

refers to the amount of energy released when an electron is added to a neutral atom to form a negative ion. Understanding electron affinities is crucial in various fields, including chemistry ...