Equipment. A flow chart of the plant in which the measurements are conducted is presented in Fig. 3. The flow
chart is realized on the base of an automated bench for investigating the optical parameters of Kumakhov optics . A polycapillary
collimator 2 is situated in a special holder that may be moved in three orthogonal directions. This makes it possible
to precisely adjust the collimator relative to the focal spot of the x-ray tube 1.