J. Tümmler

TL;DR: In this paper, the manufacture and properties of compound refractive lenses (CRLs) for hard X-rays with parabolic profile are described and a theory for imaging an X-ray source and an object illuminated by it has been developed, including the effects of attenuation (photoabsorption and Compton scattering) and of the roughness at the lens surface.

TL;DR: In this article, refractive x-ray lenses with a parabolic profile are described, similar to glass lenses for visible light, which can operate in the range from 2 to 50 degrees of freedom, allowing for magnifications up to 50.

TL;DR: In this paper, the authors have calculated the transmission and gain for linear lens arrays, for crossed linear arrays, and for doubly focusing lenses with parabolic profile, and showed that the gain of the lenses can be as high as 5000 and more, i.e., the intensity in the focal spot can be 5000 times higher than that behind a pinhole of size equal to the spot size.

TL;DR: Refractive X-ray lenses with a rotational parabolic profile have been realized at as discussed by the authors, where the main features of the new lenses are: they focus in two directions and are free of spherical aberration.

TL;DR: The X-ray fluorescence microtomography method is presented in this paper, which is capable of virtually slicing samples to obtain cross-sections of their inner structure, and high precision experimental results of fluo-tomography in "pencil-beam" geometry with up to 1.2μm resolution are described.