Figure 2.

An ultra-low-angle diffraction pattern of a demebranated rabbit psoas muscle recorded with an X-ray exposure of only 5 × 10⁹ photons. The fiber axis is along the vertical direction and the well defined reflections correspond to the axial repeat of the sarcomeres of length ≃ 2.3 µm. Once again, the pattern demonstrates the high angular resolution and detection capability that can be achieved. The specimen is courtesy of M. Linari et al. (University of Florence, Italy).