Tritium or 3H is present in many nuclear processes and in in air is mostly available in the form of water vapor (H1H3O) or gaseous hydrogen (H1H3). Since the weak 18 keV Beta particles emitted by Tritium have a very short range (only a few millimeters in air), windowless detectors must be used, i.e. the air to be measured has to be added to the counting gas. For a continuous measurement, the counter tube must therefore operate in the flow-through mode.
Tritium in water require another type of technique to measure.
LB 110 - room or exhaust tritium measurement system
Part number: 80872-10
Part number: 80872-10 The air to be measured is mixed with a suitable counting gas and passed through a 1.3 liter volume proportional counter tube. Methane (mixing ratio air/gas 1:3) or Argon-Methane (P10, mixing ratio air/gas...