Fig. 11.

Linewidths at the quasielastic neutron spectra of bcc Ti at 1460 °C (left) and 1530 °C (right) as a function of Q. Left: scattering plane parallel to the (001) crystal plane. Right: scattering plane parallel to the (012) crystal plane, α denotes a rotation of the sample around an axis perpendicular to the scattering plane and is defined as the angle between the incident neutrons and the <100> crystal direction. The model calculations are: solid line, l/2[111] nearest neighbor jumps; dashed line, [100] 2nd nearest neighbor jumps; dotted line, tetrahedral interstitial jumps [19,20].