Decrease the Intensity t0 [0 electrons second_ The paltern now builds one electron at time. Click on the Persist button and observe for one minute
Has the diffraction pattern changed? Why or why not?
How can single electron diffract?
When you look at the complete diffraction pattern of a stream of particles you are seeing all the places you expeet particles to scatter. If you start the source over multiple times 0u will see that the first particle is never detected in the same place twice. This is an application of the Heisenberg Uncertainty Principle; which is directly connected with measurement. It takes into account the minimum uncertainty of the position (Ar) and the uncertainty of the momentum (Ap) using the equation The picture Because you know the energy at which the particle is trave_ ling: you can precisely know the momentum, but you cannot know the position. Consequently. You cannot predict where each particle will hil.