Match the detector for a scanning electron microscope (SEM) in Column I with the resulting output in Column II.
Match the detector for a scanning electron microscope (SEM) in Column I with the resulting output in Column II.
Show Hint
- P-4; Q-3; R-1; S-2
- P-2; Q-4; R-1; S-3
- P-3; Q-4; R-2; S-1
- P-3; Q-4; R-1; S-2
The Correct Option is D
Solution and Explanation
In this question, we need to match the detectors with their corresponding output. Let’s consider the function of each detector and its corresponding output:
1. SE Detector (P): The Secondary Electron (SE) detector is used for capturing topographic images of the sample's surface. It provides detailed surface features, making it suitable for creating a topographic image. This corresponds to option (3).
2. BSE Detector (Q): The Backscattered Electron (BSE) detector is sensitive to variations in atomic number contrast in the sample. It helps produce compositional contrast images, revealing differences in composition across the sample. This corresponds to option (4).
3. EDS Detector (R): The Energy Dispersive Spectroscopy (EDS) detector is used to analyze the elemental composition of the sample by detecting X-rays generated from interactions with electrons. This corresponds to option (1) for elemental composition analysis.
4. EBSD Detector (S): The Electron Backscatter Diffraction (EBSD) detector is used for crystallographic analysis, especially to observe Kikuchi lines, which are patterns produced due to diffraction of electrons. This corresponds to option (2).
Thus, the correct matching is:
\[ {P-3; Q-4; R-1; S-2} \] Therefore, the correct answer is option (D).
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