7.1, 7.3; for problem 7.1, assume that the field at the apex of the tip is 5 times smaller than the field at the surface of a sphere with the same radius of curvature.
Using the data from problem 7.1, estimate the transmission probability for an electron at the Fermi energy of the metal.
In Figure 7.10, mark all the positions where the diffraction pattern will appear.
