Author pages are created from data sourced from our academic publisher partnerships and public sources.
- Publications
- Influence
A compound refractive lens for focusing high-energy X-rays
- A. Snigirev, V. Kohn, I. Snigireva, B. Lengeler
- Chemistry
- Nature
- 1 November 1996
THE development of techniques for focusing X-rays has occupied physicists for more than a century. Refractive lenses, which are used extensively in visible-light optics, are generally considered… Expand
On the possibilities of x-ray phase contrast microimaging by coherent high-energy synchrotron radiation
- A. Snigirev, I. Snigireva, V. Kohn, S. Kuznetsov, I. Schelokov
- Physics
- 1 December 1995
Coherent properties of the x-ray beam delivered at the ESRF allow the observation of very weak perturbations of the wave front, resulting in the phase contrast. A straightforward experimental setup… Expand
Diffraction theory of imaging with X-ray compound refractive lens
- V. Kohn, I. Snigireva, A. Snigirev
- Physics
- 15 February 2003
Specific features of X-ray compound refractive lens (XCRL) with parabolic profile of concave surfaces for hard Xray focusing and micro-imaging are analyzed theoretically. Large longitudinal size L of… Expand
Theory of Imaging a Perfect Crystal under the Conditions of X‐Ray Spherical Wave Dynamical Diffraction
- V. Kohn, I. Snigireva, A. Snigirev
- Physics
- 1 November 2000
A theory of the formation of interference patterns due to X-ray spherical wave two-beam dynamical diffraction in a perfect crystal is presented. An asymmetrical Laue case is analyzed in detail, when… Expand
On the requirements to the instrumentation for the new generation of the synchrotron radiation sources. Beryllium windows
- A. Snigirev, I. Snigireva, V. Kohn, S. Kuznetsov
- Physics
- 21 February 1996
Abstract It was shown that the high spatial and time coherency of the X-ray beam delivered at the ESRF allows one to observe very weak perturbation of the wave front, resulting in the phase contrast… Expand
Focusing high energy X‐rays with stacked Fresnel zone plates
- I. Snigireva, A. Snigirev, +5 authors M. Michiel
- Materials Science
- 1 August 2007
Stacking technique was developed in order to increase focusing efficiency of Fresnel zone plates at high energies. Two identical Si chips each of which containing Fresnel zone plates were used for… Expand
High energy X-ray nanofocusing by silicon planar lenses
- A. Snigirev, I. Snigireva, +5 authors S. Kuznetsov
- Materials Science
- 1 September 2009
Optimizing the lens design and improving the technological process, we manufactured X-ray planar compound refractive lenses with vertical sidewalls up to 70 microns deep. The lens surface roughness… Expand
On the Theory of an X‐Ray Fabry‐Perot Interferometer
- V. Kohn, Y. Shvyd'ko, E. Gerdau
- Physics
- 1 October 2000
The theory of an X-ray Fabry-Perot interferometer (FPI) is developed as a particular case of the dynamical theory of X-ray Bragg diffraction in layered crystalline systems. Mathematical expressions… Expand
Interferometric characterization of spatial coherence of high energy synchrotron X-rays
- V. Kohn, I. Snigireva, A. Snigirev
- Physics
- 1 November 2001
A simple and direct interferometric technique for characterization of the source size and the transverse coherence length of synchrotron hard X-rays is discussed. A high level of spatial coherence of… Expand
Stacked Fresnel Zone Plates for High Energy X-rays
- I. Snigireva, A. Snigirev, +4 authors M. Grigoriev
- Physics
- 7 February 2007
A stacking technique was developed in order to increase focusing efficiency of Fresnel zone plates (FZP) at high energies. Two identical Si chips each of which containing 9 FZPs were used for… Expand
...
1
2
3
4
5
...