BIXS measurements of tritium uptake in C and W materials for EAST

Tritium exposed samples, including doped graphite, SiC coated graphite, tungsten coatings fabricated by vacuum plasma spraying, and polycrystalline tungsten, were examined by β-ray-induced X-ray spectrometry in an argon atmosphere. The changes in the X-ray spectra with time were followed for a maximum time of 100 h. The results indicated that the SiC coated graphite absorbed the most tritium and the polycrystalline tungsten the least. Preliminary computer simulations were performed to analyze the depth profiles of tritium in these materials.