Abstract
From viewpoint of establishment of a standard system to determine the absolute amount and/or concentration of high-level tritium which is used as fuel of a future fusion reactor and one of radioactive materials, the applicability of a specially designed twin type conduction calorimeter has been examined at the tritium handling facility in Hydrogen Isotope Research Center, University of Toyama. Two examples of the examinations were shown: one is the measurement of a given amount of tritium stored in ZrNi alloy powder, and the other is the measurement of tritiated water. Both examinations gave enough results as a standard device. It was seen, therefore, that the present calorimeter has high potential for measurements of the absolute amount of tritium. Furthermore, an example that the present calorimeter was applied to nondestructive measurement of the amount of tritium in a glass ampoule was described.
https://ror.org/0445phv87 
