Tritium depth profiling by AMS

Tritium depth profiles in carbon have been determined at the Rossendorf AMS facilities during the past seven years. The samples have been cut from tiles of the inner walls of the fusion reactors ASDEX-upgrade Garching, JET Culham and TFTR Princeton. The high tritium content required a dedicated AMS facility to prevent any contamination of the versatile 3 MV Tandetron. It is based on an SF6-insulated 100 kV tandem accelerator equipped with a DLC stripper foil of about 1µg/cm². Depth profiles of deuterium and other light elements can also be measured in SIMS mode or AMS mode depending on concentrations.