Tritium radioluminography in V-3.5(Zr, Ti, Ni) protium absorption alloy

Tritium radioluminography and tritium autoradiography have been applied to V-3.5(Zr, Ti, Ni) protium absorption alloy with a two-phase structure of BC C phase and Laves phase to examine the behavior of protium. By these method s, tritium distribution has been graphically displayed, and both the tritiu m and protium concentration on the surface of the alloy have been evaluated . The protium concentration in the BCC phase and Laves phase in this alloy has been determined to be 1.4 mol% and 2.3 mol% respectively. It has been f ound that the preferential path for the protium penetration into the alloy is not the BCC phase but the Laves phase.