Real time tritium monitoring at the Tokamak Fusion Test Reactor

The Tokamak Fusion Test Reactor (TFTR) employs a real time Radiation Monitoring System (RMS) which is comprised of 80 radiation monitors of 6 varying types. The RMS is divided into two specific groups. The Environmental Radiation Monitoring Group are those monitors which include 12 neutron detectors, 12 gamma detectors, and 5 continuous air monitors which are located along the outside of the TFTR Test Cell (and roof), as well as along the perimeter of the Exclusion Zone Boundary. These monitors are used to detect pulsed gamma and neutron radiations generated from the current operation of TFTR. The Tritium Radiation Monitoring Group are those monitors which include 41 kanne detectors 8 differentiating activated air/tritium detectors, and 2 discriminating tritium oxide/elemental tritium detectors. These monitors are spread throughout the TFTR facility for the purpose of detecting different forms of tritium in varying atmospheres. This paper addresses those monitors which make up the Real Time Tritium Monitoring System