TRITIUM TRACKING IN ITER

To successfully control tritium in ITER, the reactor must implement an appropriate tritium tracking programme. This paper introduces the nee d to compartmentalize the different tritium systems of ITER and then a ssesses current practical and theoretical tritium quantification metho ds. By applying the most suitable measurement techniques, it is possib le to establish probable tritium mass uncertainties which are presentl y achievable in the various ITER systems. On this basis, a number of R &D activities have been identified aimed at reducing tritium mass unce rtainties for specific ITER systems.