List of example data files that include electron guns:
xmpl2d15 Automatic iterative variation of the grid voltage of a simple thermionic electron gun.
xmpl2d43 X-ray tube with thermal energies.
xmpl3d12 Automatic optimisation of an electron gun with a hairpin cathode.
xmpl3d13 Cathode ray tube.
xmpl3d15 Hairpin cathode with potential drop and current.