Virtual Labs

Advanced Imaging Modes of SEM (BSE (Compositional & Topography), TLD, Multiple Elemental mapping)

What is the primary function of Scanning Electron Microscopy (SEM) in materials science?

a: To measure magnetic properties Explanation

Explanation

b: To perform chemical reactions Explanation

Explanation

c: To provide high-resolution imaging and analysis of sample surfaces and microstructures Explanation

Explanation

d: To assess thermal conductivity Explanation

Explanation

Which SEM imaging mode utilizes elastically scattered high-energy electrons to provide compositional contrast?

a: Through-Lens Detection (TLD) Explanation

Explanation

b: Backscattered Electron Imaging (BSE) Explanation

Explanation

c: Electron Backscatter Diffraction (EBSD) Explanation

Explanation

d: Secondary Electron Imaging (SEI) Explanation

Explanation

In Backscattered Electron Imaging (BSE), what causes certain areas of the image to appear brighter?

a: Higher surface roughness Explanation

Explanation

b: Higher electron beam energy Explanation

Explanation

c: Higher atomic number elements Explanation

Explanation

d: Lower atomic number elements Explanation

Explanation

What is the advantage of Through-Lens Detection (TLD) in SEM?

a: It only detects backscattered electrons. Explanation

Explanation

b: It enhances detection efficiency and allows for simultaneous detection of SE, BSE, and transmitted electrons. Explanation

Explanation

c: It detects X-rays emitted from the sample. Explanation

Explanation

d: It provides information solely on crystallographic orientation. Explanation

Explanation

How does Energy-Dispersive X-ray Spectroscopy (EDS) contribute to SEM analysis?

a: By detecting the magnetic properties of the sample Explanation

Explanation

b: By generating maps that show the distribution of different elements across the sample surface Explanation

Explanation

c: By capturing high-resolution images of surface topography Explanation

Explanation

d: By determining the grain size of polycrystalline materials Explanation

Explanation

What does SEM stand for in the context of materials science?

a: Scanning Electron Microscopy Explanation

Explanation

b: Surface Element Mapping Explanation

Explanation

c: Structural Energy Mapping Explanation

Explanation

d: Secondary Electron Microscopy Explanation

Explanation