Figure 6
Geometry of beam alignment for stress measurements of specimens. (a) The specimen surface is irradiated with half of the incident beam. (b) The θ–2θ condition for {113} planes in SUS316L steel after the specimens are raised by 0.2 mm. (c) The diffracted beam is collimated with double slits of width 0.2 mm. Dark areas in (b) and (c) show gauge volumes contributing to diffraction intensity. SC = scintillation counter. |