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Relativistic Wavelength equation.png
wavelength table.png

Electron wavelength as a function of accelerating voltage 

Add unrelativistc equation too! 

Source: Williams & Carter TEM textbook

Probe size limit.png
image.png

Note: Chromatic aberration and effects of source size not factored in.

Probe Size (diameter) based on semi convergence angle

Add in Chromatic abberration!!!

Add in r_min

Add in B_optimum

Add in Depth of Focus (elbaum?)

Inelastic Vs Elastic Cross Section

Mean energy loss = 6.5Z

Inelastic vs Elastic scattering ratio.

Mention of Shell dependance.

20 Z

Sawyer and Gibb: "Resolution limit ~ 1/10 of speciment thickness for polymers/biological"

Fluence as a function of probe size and Current

Dose.

Converter of A/cm-2 to e-/A-2, to Grays

Gas Pressure converstion: Look up table

Mbar:

Torr:

Pa:

Crystallography:

32 Point groups

14 Bravias lattices

7 Lattice systems

Gun Brightness

Principle Electron Source table

Equation for gun brightness

Calculating Beam Diameter (source size)

Electron Detectors

DQE

SNR

Pixel size / nyquist frequency

Dynamical Scattering

Look at ratio of scattering. 

Plot on where kinematic breaks down as function of thickness/density/atomic number

How to "observe" dynamical effects.

GRIDS

r2/2/

Mesh size --> Grids size

Hole.

Etc.

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