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Mechanical Engineering Electron Microscopy For Beginners Experiments

Aim

Theory

Pretest

Procedure

Simulation

Posttest

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Aim

Theory

Pretest

Procedure

Simulation

Posttest

References

Feedback

Basic operations of Transmission Electron Microscope (Imaging and Diffraction Pattern)

1. Which of the following is NOT an electron source:

a: SiO₂ b: W-filament c: LabB₆ d: CeB₆

2. What is the typical voltage in a conventional TEM instrument?

a: 230 V b: 440 V c: 20 kV d: 200 kV

3. What is the typical level of vacuum required in the TEM?

a: 1 - 10 torr b: 10^-1 -10^-2 torr c: 10^-3 - 10^-5 torr d: 10^-6 - 10^-8 torr

4. Which of the following is used to obtain diffraction pattern?

a: Elastically scattered electrons b: Inelastically scattered electrons c: Transmitted electrons d: X-rays

5. Which of the following is used to obtain Kikuchi patterns?

a: Elastically scattered electrons b: Inelastically scattered electrons c: Transmitted electrons d: X-rays

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