Review Article

Kirkpatrick-Baez (KB) and Lobster Eye (LE) Optics for Astronomical and Laboratory Applications

Table 1

Critical angles 𝜃 𝑐 (mrad) for selected materials frequently used to reflect X-rays in grazing incidence X-ray mirrors for two selected energies Cu 𝐾 𝛼 (8,0 keV) and Mo 𝐾 𝛼 (17.4 keV).

Material C u 𝐾 𝛼 Mo 𝐾 𝛼

Ni7.373.40
Au9.964.59
Ir10.754.96
Glass4.071.88