The aim of this experiment is to measure in-situ the high temperature beta phase in a Ti and Zr alloy in order to relate the beta texture with the alpha texture observed at room temperature. Titanium and Zirconium alloys are structural materials used by the aerospace and nuclear industry. Both types of metals undergo a phase transformation from the hcp alpha to the bcc beta phase at temperatures between 700 and 1000°C. We have found recently that the temperature at which we heat-treat the material above the beta transus has a major effect on the alpha texture upon cooling. To understand the mechanism behind this phenomenon we need to measure in-situ the high temperature beta texture and identify changes with maximum heat treatment temperature.