Tritium Laboratory Karlsruhe (TLK)


Experimentation with tritium demands an entirely closed tritium processing cycle and a highly developed safety technology. At TLK tritium is always contained within at least two barriers. More than ten glove box systems, total volume of about 125 m³, are operated in an area of 841 m² for experiments and a further area of 615 m² for infrastructure. The glove boxes constitute the secondary tritium containment for the primary systems of tritium components and pipe work.
For economical but also for ecological imperatives each tritium process is designed to be as efficient as reasonably achievable. In principle, the tritium inventory in any experiment should be minimized and all gaseous, liquid and solid waste is detritiated as far as possible. Only when an experimental process has proved these capabilities, the inventory of tritium at TLK becomes available for experiments. The simplified diagram shows the self-contained tritium cycle at TLK where tritium is delivered to experiments, recovered and reprocessed for further use.

The TLK has a comprehensive infrastructure, which is focused to support the technical experiments. The infrastructure includes:

  • the Tritium Transfer System (TTS), which controls the distribution of tritium to the experiments and other systems
  • the Tritium Storage System (TLG), which stores the tritium not used by experiments or other systems
  • the Tritium Cleaning System (CAPER) removes impurities from gases containing hydrogen isotopes
  • the Tritium Measurement Technique (TMT) analyses the composition of gas samples
  • the Isotope Separation System (ISS) can separate protium, deuterium and tritium from each other
  • the facility for the regeneration of molecular sieves used to absorb tritiated water vapour (AMOR)