Helium Release From Aged Uranium Tritide

Helium desorption rule from aged uranium tritide was investigated through the pressure measurement and the composition of helium released from uranium tritide stored at room temperature was analysed. After 6 to 7 years aging of uranium tritide, about 38.1%-45.3% He prodeced by disintegration of ³He from uranium tritide was released in the cavum of the uraniumbed with the gas pressure of 1.11-1.36 MPa and the purity of 99.9% above, the rest of helium is kept in the solid of uranium tritide with the He/U ratio of 0.177-0.201.