Laue Gamma-Ray Lenses for Space Astrophysics: Status and Prospects

Figure 5

Reflectivity profile of a curved crystal as a function of the rocking angle Δ𝜃. This angle gives the difference between the incidence angle of the monochromatic photon beam and the Bragg angle. 𝐼₀ represents the incident intensity, 𝐼_𝑡(Δ𝜃) the transmitted intensity, and 𝐼_𝑟(Δ𝜃) the reflected intensity. Reprinted from [25].