Podcast
Questions and Answers
What is the function of a SEM microscope?
What is the function of a SEM microscope?
- To analyze the internal structure of samples
- To produce high-resolution images of sample surfaces (correct)
- To study the behavior of samples under specific conditions
- To identify the chemical composition of samples
What is the source of electrons in a SEM microscope?
What is the source of electrons in a SEM microscope?
- Tungsten filament (correct)
- Mercury vapor
- Laser diode
- Xenon arc lamp
What is the purpose of using a conductive coating on samples in SEM microscopy?
What is the purpose of using a conductive coating on samples in SEM microscopy?
- To prevent charging and improve image quality (correct)
- To increase the resolution of the microscope
- To reduce the depth of field in the image
- To enhance the chemical contrast of the sample
Flashcards
SEM Microscope Function
SEM Microscope Function
Produces high-resolution images of sample surfaces, revealing detailed topographical information.
Electron Source in SEM
Electron Source in SEM
A tungsten filament emits electrons, which are then focused to scan the sample's surface.
Conductive Coating in SEM
Conductive Coating in SEM
It prevents electron buildup on the sample, which can distort the image, and enhances electron signal detection.
Study Notes
What is the function of a SEM microscope? What is the source of electrons in a SEM microscope? What is the purpose of using a conductive coating on samples in SEM microscopy?
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