An electrolytic-tank equipment for the determination of electron trajectories, potential and gradient

A description is given of a general-purpose electrolytic-tank equipment of simple design. Provision is made for testing either axially-symmetric or two-dimensional models, and the associated circuits can be arranged by switching (a) to measure potentials, (b) to mark equipotentials automatically, (c) to measure potential gradients, and (d) to trace electron trajectories. As a test of accuracy a family of parabolic trajectories was compared with calculated paths. The errors were found to be less than 1% of the true co-ordinates, indicating that the accuracy is sufficient for most problems found in the design of electrode structures.