In a D-T fusion reactor, self-sufficiency of tritium is one of the critical issues to maintain steady-state operation of the reactor. Li₂TiO₃ and core-shell Li₂TiO₃–Li₄SiO₄ biphasic pebbles have been irradiated by thermal neutrons in Kyoto University. T-TDS (Tritium - Thermal Desorption Spectroscopy) was performed in Shizuoka University. There is one main tritium trapping site in neutron irradiated Li₂TiO₃. However, three tritium trapping sites are introduced in neutron irradiated core-shell Li₂TiO₃– Li₄SiO₄. The two peaks at lower temperature agree with that of Li₂TiO₃ which can be attributed to tritium release from Li₂TiO₃ including shell and core. The peak at higher temperature is mainly considered as tritium release from Li₄SiO₄. The amount of tritium released from core-shell Li₂TiO₃–Li₄SiO₄ is slight higher than that of Li₂TiO₃. The kinetic parameters of tritium diffusion in Li₂TiO₃ have been obtained. In the case of Li₂TiO₃ and core-shell Li₂TiO₃–Li₄SiO₄, almost all the tritium is released as HTO observed from T-TDS. Purge gas has little effect on tritium release, indicating tritium release from Li₂TiO₃ was mainly controlled by tritium diffusion in Li₂TiO₃ grain.

在DT聚变反应堆中，self的自给自足是维持反应堆稳态运行的关键问题之一。京都大学的热中子辐照了Li ₂ TiO ₃和核壳型Li ₂ TiO ₃ -Li ₄ SiO ₄双相小卵石。T-TDS（rit-热脱附光谱法）在静冈大学进行。在中子辐照的Li ₂ TiO _3中有一个主要的tri捕获位点。然而，在中子辐照的核壳Li ₂ TiO ₃ -Li ₄ SiO ₄中引入了三个tri俘获位点。较低温度下的两个峰与Li ₂ TiO _3的峰一致，这可以归因于tri从Li ₂ TiO _3中释放出的including，包括壳和核。高温下的峰主要被认为是Li从Li ₄ SiO _4中释放出来。从核壳型Li ₂ TiO ₃ -Li ₄ SiO _4中释放出的than量略高于Li ₂ TiO ₃。获得了Li在Li ₂ TiO _3中扩散的动力学参数。在Li ₂ TiO ₃的情况下和核-壳型Li ₂ TiO ₃ -Li ₄ SiO ₄，几乎所有all都以HTO的形式从T-TDS中释放出来。吹扫气体对tri的释放几乎没有影响，表明从Li ₂ TiO ₃释放tri主要受mainly在Li ₂ TiO ₃晶粒中的扩散控制。