Awarded
Supply and set-up of an on-line tritium monitoring
Descriptions
Tritium (3H or T) is the only radioactive isotope of hydrogen and it is used to fuel fusion reactions at JET. In materials containing hydrogen, present tritium atoms will exchange with hydrogen atoms to form tritiated molecules of the material. This property of tritium is used for trapping tritium in water from the gas passing through the water. However, trapping of gaseous tritium (HT/T2) in such way is more difficult than tritiated water molecules. Therefore, oxidation of the sampled air has to take place during the sampling stage, so it is ensured that all tritium is sampled. The main exposure route to tritium is via inhalation. If tritium in gaseous form (HT, DT, T2) is inhaled, only small fraction of it is not exhaled, but dissolved in the blood stream and then exhaled after a few minutes. Tritium in form of water (HTO, DTO, T2O) is adsorbed through the skin and in the lungs from inhaled gases. Tritiated water is retained in the body for ~10 days which is its biological half-life. Therefore, exposure to tritiated water in air is up to 25000 times more hazardous than exposure to gaseous tritium. UKAEA's research on detritiation of fusion materials requires on-line monitoring of tritium released during various experimental activities in order to correctly identify optimal parameters of the experimental set-up.
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CPV Codes
38942000 - Alpha beta counters
38000000 - Laboratory, optical and precision equipments (excl. glasses)
38940000 - Nuclear evaluation instruments
38943000 - Beta counters
Keywords
laboratory instruments
precision apparatus
scientific measuring devices
analytical equipment
optical tools
research lab gear
calibration instruments
microscopy tools
spectrometry units
general testing equipment
multipurpose lab instruments
evaluation tools
diagnostic devices
measurement apparatus
nuclear analyzers
radiation monitors
radioactivity testing equipment
nuclear diagnostics
isotope measurement devices
spectrometry systems
contamination detectors
dosimetry tools
nuclear assay instruments
alpha beta counters
dual radiation detectors
alpha-beta analyzers
mixed radiation counters
alpha beta contamination meters
particle discrimination devices
combined activity sensors
radiological analyzers
alpha beta monitoring systems
beta counters
beta particle detectors
beta radiation monitors
isotope activity meters
beta emission sensors
thin-window counters
radiometric beta analyzers
portable beta instruments
nuclear beta testers
Tender Lot Details
2 Tender Lots
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Possible Competitors
1 Possible Competitors
