What are the Advantages of Cold Field Emission Sources?
1. High Brightness and Coherence: CFES provide an electron beam with high brightness and coherence, which is essential for high-resolution imaging and lithography. 2. Low Energy Spread: The electrons emitted have a narrow energy distribution, improving the resolution and contrast in electron microscopes. 3. Immediate Emission: Unlike thermionic emission sources, CFES do not require time to heat up, providing instant electron emission when the electric field is applied. 4. Reduced Thermal Effects: Since CFES operate at lower temperatures, there is minimal thermal expansion and reduced risk of damaging sensitive nanostructures.
