  The break-through voltage over small gaps has been investigated for differing
gap distances, gas pressures, and gas temperatures in nitrogen, neon, argon and
xenon gases. A deviation from Paschen's law at micro gap distances has been
found. The breakthrough behavior of the fill gas in colder environments was
tested as well. A significant shift of the curve relative to the results at
room temperature was observed. The results can be explained by combining
Paschen's law and the ideal gas law.
