Create Controls

Controls.md

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+List of controls consists of all parameters needed for proper dataset acquisition design:
+- **Aperture** probe forming aperture gives probe semi-angle (α)
+- **Energy** energy of primary electron beam in keV ... gives final pixel size
+- **Probe** probe setting together with chosen probe forming aperture give probe current
+- **Defocus** moves focus out of the sample plane - enlarges beam diameter