Overhoff - Model TASC-HTO-HT - Tritium Air Sampler - Brochure

The Model TASC-HTO-HT is a high-quality and reliable passive tritium in air sampler.  Airborne tritium in the sample stream is continuously collected in vials filled with a liquid collection medium (water or glyocol).  The amount trapped increases linearly with elapsed time.  At regular intervals, the sampling is stopped, the contents removed and assayed using liquid scintillation counting to determine the amount of radioactivity collected.  Knowing the collection flow rate and the results of the scintillation assay, the average sample activity can be calculated for the period of time over which the sample was collected.   Passive samplers, although they do not provide real-time data, provide a low-cost and highly effective method of measuring extremely low levels for ensuring compliance with local regulations.