Tomography with grating interferometers at low-brilliance sources

The coherence requirements for efficient operation of an X-ray grating interferometer are discussed. It is shown how a Talbot-Lau geometry, in which an array of equidistant secondary sources is used, can be used to decouple fringe visibility in the interferometer (and thus, its efficiency) from the total size of the X-ray source. This principle can be used for phase-contrast radiography and tomography with sources of low brilliance, such as X-ray tubes.

[1]  Ulrich Bonse,et al.  Developments in X-Ray Tomography V , 1999 .

[2]  O. Bunk,et al.  Neutron phase imaging and tomography. , 2006, Physical review letters.

[3]  Olivier Hignette,et al.  Tunable diffractive optical elements for hard x-rays , 2001, SPIE Optics + Photonics.

[4]  Franz Pfeiffer,et al.  X-ray phase imaging with a grating interferometer. , 2005, Optics express.

[5]  Timm Weitkamp,et al.  Hard x-ray phase imaging and tomography with a grating interferometer , 2004, SPIE Optics + Photonics.

[6]  Atsushi Momose,et al.  Phase Tomography by X-ray Talbot Interferometry for Biological Imaging , 2006 .

[7]  A. Zeilinger,et al.  Matter-wave interferometer for large molecules. , 2002, Physical review letters.

[8]  O. Bunk,et al.  Phase retrieval and differential phase-contrast imaging with low-brilliance X-ray sources , 2006 .

[9]  Eric Ziegler,et al.  Wavelength tunable diffractive transmission lens for hard x rays , 2001 .

[10]  Timm Weitkamp,et al.  X-ray wavefront analysis and optics characterization with a grating interferometer , 2005 .

[11]  O. Bunk,et al.  Shearing interferometer for quantifying the coherence of hard x-ray beams. , 2005, Physical review letters.

[12]  ヴァイトカンプ・ティム,et al.  Interferometer for quantitative phase contrast imaging and tomography with incoherent polychromatic x-ray source , 2006 .

[13]  Atsushi Momose,et al.  Phase tomography using an x-ray Talbot interferometer , 2004, SPIE Optics + Photonics.

[14]  Timm Weitkamp,et al.  Moire interferometry formulas for hard x-ray wavefront sensing , 2004, SPIE Optics + Photonics.

[15]  C. David,et al.  Differential x-ray phase contrast imaging using a shearing interferometer , 2002 .

[16]  Atsushi Momose,et al.  Demonstration of X-Ray Talbot Interferometry , 2003 .

[17]  Li,et al.  "Heisenberg microscope" decoherence atom interferometry. , 1994, Physical review. A, Atomic, molecular, and optical physics.

[18]  G. G. Stokes.  "J." , 1890, The New Yale Book of Quotations.