tritium element gas discharge spectrum tube low pressure

Description

tritium (superheavy hydrogen) discharge tube. height 100 mm, diameter 8 mm, neon electrodes, lead glass, mercury free, power 2+ kilovolts, 98+% purity, pressure 2~4 torr.
exclusive! contains small amounts of helium-3 due to radioactive decay. beta particles are completely absorbed by the glass of the tube! the sample is absolutely safe.