Patent Number: 
Section: claims

1. An X-ray optics arrangement comprising an X-ray source, one element focusing X-rays and one element reflecting X-rays for the generation of a parallel X-radiation having a small beam cross section of high photon flux density, wherein said X-radiation of said X-ray source is directed with said focusing element upon a convex, parabolic and reflecting surface of the reflecting element, and wherein a multilayer system is provided on the surface of said reflecting element, the multilayer system including multiple layers, individual ones of which multiple layers are gradient layers, said X-radiation being directed upon said reflecting element with an anglexe2x89xa6critical angle "THgr" c  of the total reflection. 2. The X-ray optics arrangement according to  claim 1  wherein the focal points F of said focusing element and said reflecting element coincide. claim 1 3. The X-ray optics arrangement according to  claim 1  wherein said focusing element has a concave, parabolic or elliptical surface. claim 1 4. The X-ray optics arrangement according to  claim 1  wherein said parabolic surface of said reflecting element is cylindrically symmetric. claim 1 5. The X-ray optics arrangement according to  claim 1  wherein adjacent individual layers of each multilayer system comprise different X-ray optical refractive indices. claim 1 6. An X-ray optics arrangement comprising an X-ray source, one element focusing X-rays and one element reflecting X-rays for the generation of a parallel X-radiation having a small beam cross section of high photon flux density, wherein said X-radiation of said X-ray source is directed with said focusing element upon a convex, parabolic and reflecting surface of the reflecting element, and wherein a multilayer system is provided on the surface of said reflecting element, the multilayer system including multiple layers, individual ones of which multiple layers are gradient layers, said X-radiation having angles of incidence "THgr"i being directed upon said multilayer system having gradient layers such that with a predeterminable wavelength of X-radiation the BRAGG relationship is met on each surface element of the reflecting element. 7. The X-ray optics arrangement according to  claim 6  wherein the focal points F of said focusing element and said reflecting element coincide. claim 6 8. The X-ray optics arrangement according to  claim 6  wherein said focusing element has a concave, parabolic or elliptical surface. claim 6 9. The X-ray optics arrangement according to  claim 6  wherein said parabolic surface of said reflecting element is cylindrically symmetric. claim 6 10. The X-ray optics arrangement according to  claim 6  wherein adjacent individual layers of each multilayer system comprise different X-ray optical refractive indices. claim 6