A Novel Technique for Measurement of Tritium Permeation Through Resistant Materials Near Room Temperature: Demonstration of Method with Copper at 50–170°C

To measure tritium permeation through low-permeability materials at 50–170°C, we use highly-sensitive liquid scintillation counting to detect the permeating tritium. To validate our method, we conducted extensive experiments with copper, for which much data exists for comparison. We report permeability of tritium through copper at 50, 100, and 170°C, and discuss details of the experimental technique. Further plans are outlined.