(57) X-ray telescope which displays the X-ray radiation with wavelength (λ) is formed
by a parabolic strip assembled from bent monocrystalline plates (1,2) with atomic
planes (5) parallel with the surface of these monocrystalline plates (1,2), where
their mutual distance in each monocrystalline plate (1,2) varies according to the
equation
where n is a natural number, which determines the number of wavelengths (λ) belonging
to the difference of the ray travel distances when reflecting from two neighbouring
atomic planes (5), and p is double the distance of the focal line (F) from the vertex
line (V) of the parabolic strip,
i.e. for given monocrystalline plate (1,2) laid between (xmin) and (xmax) the following equation applies
where (d0) is the distance between the neighboring atomic planes (5) at the point with coordinate
(xmin) and (d ) is the distance between the atomic planes (5) at the point with coordinate (x ). Such course can be achieved by distribution of temperatures in different places
according to experimentally measured dependence of the grid parameter y on the temperature
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