Very cool :)
https://www.youtube.com/watch?v=4bQ0oe4FCzk
Eh... the electron is attracted equally in different directions should imply that it's in an unstable equilibrium (you can't have stable equilibria in electrostatics other than colocated with an opposite charge). There must be something more interesting going on.
No, I mean that an electrostatic potential cannot have local minima other than in locations of opposite charges. Thus, something more interesting must be going on there, probably involving energy level quantization.
You might wish to be aware of thermoluminescent dosimetry _and_ optically stimulated luminescence.