The influence of the long-term heating under H2 atmosphere on the tritium release behavior from the neutron-irradiated Li2TiO3

Solid tritium breeding materials are expected to be used in high-temperature conditions for a long time fusion DEMO reactor. Thus, it is important understand how bred releases from the long-term heated material under environment as close condition possible establish fuel cycle and keep safe. In this work, release behavior irradiated Li2TiO3 pebbles that was preheated 720 h at most observed by heating 1000 °C Pa H2/Ar gas flow. The peaks of HTO HT were around 300 due desorption chemisorbed water. Also, broad peak higher temperature region despite purging gas. This result suggests released without exchanging with H2 but combining oxygen pebbles. Moreover, amount decreased pre-heating time. Finally, could not experiment quantified dissolving samples an acid solution. Besides, total ratio discussed.