EMS162_2010_TEM

EMS162_2010_TEM - Transmission Electron Microscopy 1....

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1 Transmission Electron Microscopy 1. Imaging 2. Diffraction Patterns 3/9/2010 Transmission Electron Microscopy 2 Yayoi Takamura Transmission Electron Microscopes Central Facilities, UC Davis National Center for Electron Microscopy Lawrence Berkeley National Laboratory
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2 3/9/2010 Transmission Electron Microscopy 3 Yayoi Takamura JEM-3200FSC 3/9/2010 Transmission Electron Microscopy 4 Yayoi Takamura Sample Considerations • Samples have to be THIN enough for electrons to be transmitted through them. – Sample preparation: • Destructive process • Labor intensive and delicate process • Must not damage/alter the sample • Polishing, dimpling, ion milling 3mm HOLE ~1 μ m
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3 3/9/2010 Transmission Electron Microscopy 5 Yayoi Takamura Ewald Sphere 0.9411 2.9569 0.872 1 000 000 0.8279 1.7828 1.644 400 000 0.6953 1.3914 2.508 200 000 0.5482 1.19570 3.701 100 000 0.1950 1.01957 12.2 10 000 0.0625 1.00196 38.76 1 000 0.0198 1.00019 122.6 100 v/c m/m 0 λ (pm) V (volts) Ewald Sphere 3/9/2010 Transmission Electron Microscopy 6 Yayoi Takamura Component Diagrams De Graef and McHenry
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4 3/9/2010 Transmission Electron Microscopy 7 Yayoi Takamura Objective Lens De Graef and McHenry 3/9/2010 Transmission Electron Microscopy
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This note was uploaded on 05/14/2010 for the course EMS 162 taught by Professor Howitt during the Spring '08 term at UC Davis.

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EMS162_2010_TEM - Transmission Electron Microscopy 1....

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