How would you decrease the experimental errors in the accelerating voltage, distance between the target and the screen, and the diameter of the rings?
Yeah i had to make a volcano for scienceI used paper macheWell i used copper wire it would work best.
big ballbended wire (in the shape of a head.make sure it's STURDY wire and not cheap thin stuff.)
The way it's actually done in practice is to measure a standard sample, such as pure aluminum, that has had its crystal lattice constant measured to extremely high precisionThen you just calibrate your pattern, and all of the systematic parts of the errors you mention can be correctedThen you reduce the random error, for example by making sure the high voltage supply is as stable as you can get it (which is basically an electrical engineering question) and measuring enough electrons that the signal-to-noise ratio is extremely high, so that the ring positions can be determined very precisely by curve fitting (which is basically a data analysis question).
