e. Draw a schematic diagram of the structure and explain how it works.
Scanning electron microscope
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Structure and working of scanning electron microscope is given below.
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e. Draw a schematic diagram of the structure and explain how it works. Scanning electron microscope...
d. Draw a schematic diagram of the structure and explain how it works. Atomic force microscope Thank you so much.
g. Draw a schematic diagram of the structure and explain how it works. Electron spectroscopy for chemical analysis (ESCA) Thank you so much.
9. The scanning-tunneling microscope works on the principle of electron tunneling. Imagine you are trying to optimize your scanning tunneling microscope. Your microscope has a gold tip (work function 5.1 eV) and your electron has a kinetic energy of 4.6 eV (a) If you move the tip to sample distance from 0.3 nm to 0.2nm how does the transmission probability change? (b) You have a "brilliant" idea. What if you use protons instead of electrons? How will the transmission probability...
Please try to draw out the structure of the device and briefly explain how it works. (c) Faraday cup Thank you so much.
A scanning electron microscope is used to look at cell structure with 10.0 nm resolution. A beam of electrons from a hot filament is accelerated with a voltage of 14.7 kV and then focused to a small spot on the specimen. What is the wavelength in nanometers of the beam of incoming electrons? nm
(h)Charge Injection Device (CID) Please try to draw out the structure of the device and briefly explain how it works. Thank you so much.
(g)ICP source Please try to draw out the structure of the device and briefly explain how it works. Thank you so much.
In the context of Scanning Electron Microscope and energy
dispersive spectroscopy
A sample of iron is observed at 25kV and the BSE image shows a uniform-toned surface. At 0.5kV, the BSE image of the same location looks very thinks they are oxidation spots. Explain why he might think that.
A scanning electron microscope uses a uniform 15.0-kN/C electric field to accelerate electrons horizontally toward the subject to be imaged. After travelling 5.0 cm the electrons are accelerated to a speed of 1.62x107 m/s. The next step is to deflect the electrons so that they can scan across the sample—hence the scanning electron microscope. To accomplish this, the electrons are directed between a pair of oppositely charged parallel plates, which produce a uniform electric field of 6.42x103 N/C perpendicular to...