The first time that the simulation runs by pressing the Start button, default values are used for the various system parameters.
Selecting Controls you can choose an element with two or more isotopes and modify the parameters of the device. By pressing the Start button, the trajectories of the ions can be observed.
Selecting Forces you can see the direction of the forces exerted by the electric field and magnetic field on an ion.
Deselecting Magnetic field and/or Electric field the corresponding field lines disappear.
The button Pause/Continue allows you to stop and advance the simulation. Once the simulation has started, you must wait for it to end before you can execute it again by pressing the Start button.
Selecting the Result button you get information about the isotopes.
The Reset button returns the system parameter values to the situation at the outset.